{"title":"Active Autowerkes","description":"","products":[{"product_id":"active-autowerke-bmw-g2x-g4x-b58-m340i-m440i-gesi-catted-downpipe","title":"Active Autowerke BMW G2X G4X B58 M340i M440i GESI Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eSHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvet ronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and carried over to the G-chassis models. The Active Autowerke B58 downpipe for the M340i and M440i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis B58 Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter less than the stock diameter of 80mm.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4.5\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESI G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESI proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\n\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\n\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" aria-labelledby=\"tab-description\" tabindex=\"0\"\u003e\n\u003cdiv class=\"tabindex\"\u003e\n\u003ch3 class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"text-align: left;\"\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept i\u003c\/b\u003en California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan style=\"text-decoration: underline;\" data-mce-fragment=\"1\"\u003e to original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B58 Signatureu00a0Downpipe \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eBenefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your B58 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B58 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.u00a0\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 4.5 diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that youu'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B58!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936412938325,"sku":"11-062","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-g2x-g4x-b58-m340i-m440i-gesi-catted-downpipe-32274197905493.webp?v=1749146237"},{"product_id":"active-autowerke-supra-mkv-a90-a91-3-0-signature-catted-downpipe","title":"Active Autowerke Supra MKV A90\/A91 3.0 Signature Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke Supra MKV (B58) Catted Downpipe - now includes turbo flange gasket\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003eSHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIn 2012, Toyota approached BMW with a proposal for a joint development effort for a new sports car that would replace the venerable and beloved Supra MK4 which was retired from production in 2002. After several years of design, development and testing, the Toyota Supra MKV was launched in 2019 to mixed reviews but everyone agreed that it was a balanced drivers car.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eToyota and BMW choose to use the B58 inline 6 cylinder engine, a valvetronic, single turbo version of its direct-injection engine. The Active Autowerke Supra MKV catted downpipe helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe dyno chart shows an increase of 18 whp using the Active catted downpipe and signature exhaust with the stock tune (just FYI our stage 1 and stage 2 tunes are showing whp increases of 53 and 94 using the catted down pipe and signature exhaust).\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke Supra MKV Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 80mm.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4.5\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke Supra MKV Signature Catted Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your Supra MKV can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our Supra MKV downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 4.5 diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your Supra MKV!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936415068245,"sku":"11-564","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-supra-mkv-a90-a91-3-0-signature-catted-downpipe-32274209767509.webp?v=1750781830"},{"product_id":"active-autowerke-bmw-b58-f3x-m240i-340i-440i-gesi-catted-downpipe","title":"Active Autowerke BMW B58 F3X M240i 340i 440i GESI Catted Downpipe","description":"\u003cp\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"4\" style=\"font-size: large;\"\u003eActive Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eSHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016. The Active Autowerke B58 downpipe for the 340i and 440i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eThe Active Autowerke F-Chassis B58 Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter less than the stock diameter of 80mm.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eThis variant includes a 4.5\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan style=\"font-variant: normal;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan style=\"letter-spacing: normal;\"\u003e\u003cspan style=\"font-style: normal;\"\u003e\u003cspan style=\"font-weight: normal;\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-variant: normal;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan style=\"letter-spacing: normal;\"\u003e\u003cspan style=\"font-style: normal;\"\u003e\u003cspan style=\"font-weight: normal;\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"font-variant: normal;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan style=\"letter-spacing: normal;\"\u003e\u003cspan style=\"font-style: normal;\"\u003e\u003cspan style=\"font-weight: normal;\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"western\" style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eEasily bolts-on - no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eGESiu00a0proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan style=\"font-variant: normal;\"\u003e\u003cspan style=\"letter-spacing: normal;\"\u003e\u003cspan style=\"font-style: normal;\"\u003e\u003cspan style=\"font-weight: normal;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-variant: normal;\"\u003e\u003cspan style=\"letter-spacing: normal;\"\u003e\u003cspan style=\"font-style: normal;\"\u003e\u003cspan style=\"font-weight: normal;\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan style=\"text-decoration: underline;\" data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003eto original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003e- NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"4\" style=\"font-size: large;\"\u003eActive Autowerke B58 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerk's Signature downpipe, your B58 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B58 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eAfter months of research and development, our engineers settled on a 4.5 diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"line-height: 115%;\"\u003e\u003cspan color=\"#000000\" style=\"color: #000000;\"\u003e\u003cspan face=\"Liberation Serif, serif\" style=\"font-family: Liberation Serif, serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B58!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936417329237,"sku":"11-062","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-b58-f3x-m240i-340i-440i-gesi-catted-downpipe-32274214748245.webp?v=1749146246"},{"product_id":"active-autowerke-bmw-s58-g80-m3-g82-m4-g87-m2-downpipes-w-gesi-cat","title":"Active Autowerke BMW S58 G80 M3 G82 M4 G87 M2 Downpipes w GESI CAT","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW M3\/M4 S58 Catted Downpipes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eActive Autowerke is proud to release the advanced Active Autowerke Signature Catted Downpipes with GESI G-Sport cats for the BMW G80 M3, G82 M4 and G87 M2. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80\/G82\/G87 which comprises this mid-pipe, a rear axle-back valved exhaust and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80\/G82\/G87 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the G80 M3, G82 M4 and G87 M2 helps unleash some of the potential that is restricted by the OEM downpipes.\u003c\/p\u003e\n\u003cp\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the S58 is a bit restrictive, which results in slower exhaust gases and slower turbo spool. As the first step of the Active Autowerke G8X M3\/M4\/M2 collection, we are introducing our catted signature down pipe.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke G80\/G82\/G87 S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eThis variant includes a pair of 4.5\" ultra high flow GESI catalytic converters that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"line-height: 115%;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet or exceed the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"line-height: 115%;\" class=\"western\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eNO CEL for catalytic efficiency when using these downpipes\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eThe most advanced cats produced by GESI today\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eRated for 500 to 850 hp applications per cat\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eEasily bolts-on 2013 no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eexcept\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eGESI proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e\u003cspan\u003e \u003c\/span\u003eto original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003e- NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke G8X S58 Signature Downpipes Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipes, your S58 can rev quicker, and deliver more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAfter months of research and development, our engineers settled on a 3 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up.\u003c\/p\u003e\n\u003cp\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your S58!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eFITS S58 VEHICLE G80 M3, G82 M4 and G87 M2\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936425717845,"sku":"11-085","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-s58-g80-m3-g82-m4-g87-m2-downpipes-w-gesi-cat-32274223464533.webp?v=1732699401"},{"product_id":"active-autowerke-bmw-n55-f3x-m235i-335i-435i-f87-m2-gesi-catted-downpipe","title":"Active Autowerke BMW N55 F3X M235I 335I 435I F87 M2 GESI Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke BMW N55 Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\" style=\"color: rgb(255, 42, 0);\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the F-Chassis models 2014 and up. The Active Autowerke N55 downpipe for the M235i, 335i, 435i and M2 helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the N55 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis N55 Signature down pipe utilizes 3.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThis variant includes a 4.5\" high flow GESI catalytic converter that will NOT produce a CEL\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFITS ALL F-CHASSIS N55 CARS FROM 09\/2013 UP ONLY\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDesigned to be as unrestrictive as possible\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eHigh flow 4.50\" GESI cat with 3.50\" piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool - improved power over stock\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eModular design for later upgrades\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer) \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eexcept\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFull 304 stainless steel construction\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in the catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan style=\"text-decoration: underline;\" data-mce-fragment=\"1\"\u003e to original purchaser only\u003c\/span\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke N55 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your N55 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while remaining daily drive-ability was the goal of our N55 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3.5 diameter pipe which utilizes the least number of bends possible. However, the Signature N55 down pipe still fits easily into the OEM location, with a painless installation process.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your N55!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936429191253,"sku":"11-040","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-n55-f3x-m235i-335i-435i-f87-m2-gesi-catted-downpipe-32274233196629.webp?v=1749146250"},{"product_id":"f8x-bmw-s55-m2c-m3-m4-downpipes-w-gesi-g-sport-cats","title":"Active Autowerke F8x BMW S55 M2C \/ M3 \/ M4 Downpipes w GESI G-Sport Cats","description":"\u003cp\u003eFor over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. The newest addition to our BMW F87 M2C, F80 M3 and F82 M4 Collection, these F8X catted downpipes are a true testament to our outlook on creating innovative products with performance in mind. Developed for precise fitment on the F87 M2C, F80 M3 and F82 BMW M4, the difference in performance will be noticeable the moment you leave your driveway!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a pair of 4\" ultra high flow GESI catalytic converters (Gen 2 Advanced) that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESI G-Sport High Output Catalytic Converter features full 304 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003estainless steel construction, including the substrate. GESI HO-Series Gen 2 Catalytic \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eConverters are EPA registered and compliant in 49 states and fully OBD2 \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ecompliant, perfect for use on 1996 and newer vehicles. GESI proprietary\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eprecious metal loading technology ensures greatly reduced emissions, eliminating \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003emost \"Check Engine Lights\". These ultra high flow catalytic converters outperform \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003estock converters and provide a reliable solution to the most common catalytic \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003econverter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESI HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this ultra high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. u00a0Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions are not adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"line-height: 115%;\"\u003e\u003cspan style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003eQuicker turbo spool and response\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003eLess restrictive, more free flowing\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003eImproved low end and mid range performance as well as higher boost levels\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on with no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAccepts OEM O2 sensor heat shield\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936467365973,"sku":"11-080","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-f8x-bmw-s55-m2c-m3-m4-downpipes-w-gesi-g-sport-cats-32274616844373.webp?v=1749146255"},{"product_id":"active-autowerke-bmw-b46-g2x-230i-330i-430i-gesi-catted-downpipe","title":"Active Autowerke BMW B46 G2X 230i 330i 430i GESI Catted Downpipe","description":"\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cspan style=\"font-size: medium; color: #f50e0e;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003ePlease note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke BMW B46 Catted Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valve-tronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continuing into the G-chassis models. The Active Autowerke B46 downpipe for the 230i, 330i and 430 helps unleash some of the potential that is restricted by the OEM downpipe.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE: the cutoff build date of 08\/2020 is important as cars produced after that date have a downpipe with different bracket locations. Cars with build date of 08\/2020 and earlier have the brackets in a V configuration and should order the F-series downpipe while cars with a build date of 09\/2020 and later have the brackets in a straight line.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e If your car was built in the cutover months 08\/2020 and 09\/2020, please include your VIN in the order so we can ensure you get the correct downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B46 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis B46 Signature down pipe utilizes 3-1\/2 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated a stainless flex joint and then to the ball flare to meet the OEM exhaust system.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThe GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 300 and 500 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e3-1\/2 inch diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 300 to 500 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B46 Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerkeu's downpipe, your B46 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B46 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3-1\/2 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B46!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936493580373,"sku":"11-065","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-b46-g2x-230i-330i-430i-gesi-catted-downpipe-32274619793493.webp?v=1749146259"},{"product_id":"active-autowerke-bmw-b46-f3x-230i-330i-430i-and-g2x-330e-gesi-catted-downpipe","title":"Active Autowerke BMW B46 F3X 230i 330i 430i and G2X 330e GESI Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cspan style=\"font-size: medium; color: #f50e0e;\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size: medium;\" size=\"3\"\u003ePlease note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke BMW B46 Catted Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016. The Active Autowerke B46 downpipe for the 230i, 330i and 430i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B46 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis B46 Signature down pipe utilizes 3-1\/2 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated a stainless flex joint and then to the ball flare to meet the OEM exhaust system.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThe GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 300 and 500 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e3 inch diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 300 to 500 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core to original purchaser only - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B46 Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's downpipe, your B46 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B46 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3-1\/2 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B46!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936493973589,"sku":"11-065","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-b46-f3x-230i-330i-430i-and-g2x-330e-gesi-catted-downpipe-32274626412629.webp?v=1749146263"},{"product_id":"f90-m5-m8-x5m-x6m-catted-downpipes","title":"Active Autowerke F90 M5\/M8 X5M\/X6M Catted Downpipes","description":"\u003cp\u003eFor over 30 years, Active Autowerke has been the one to turn to for high quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. The newest addition to our BMW F90 M5 Collection, these S63TU downpipes represents our outlook on creating innovative products with performance in mind.\u003c\/p\u003e\n\u003cp\u003eTheu00a0S63TU downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory M5 downpipes therefore reducing radiant heat and increasing performance. Our M5 downpipes will significantly increase horsepower and torque throughout the powerband. They will reduce any turbo lag\u003c\/p\u003e\n\u003cp\u003eOur F90 M5 downpipes are manufactured in house using 304 stainless steel. Each set is meticulously tig welded and checked for perfect fitment. Our design uses a factory matched 3.5\" v-band inlet that tapers to a high flowing, mandrel bent\" body and includes the lower section sold by others as a \"mid-pipe\".\u003c\/p\u003e\n\u003cp\u003e**Our downpipes allow the use of the OEM O2 sensor heat shield. With the heat shield installed the engine bay remains stock-looking for a sleeper look!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a pair of 4.5\" high flow GESI catalytic converters that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAccepts OEM O2 sensor heat shield\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936505507925,"sku":"11-063","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-f90-m5-m8-x5m-x6m-catted-downpipes-32274712625237.webp?v=1749146267"},{"product_id":"s63-n63-catted-downpipes-v8-bmw-x5-m-and-x6-m-x5-x6-550i-650i","title":"Active Autowerke S63 N63 Catted Downpipes | V8 BMW X5 M and X6 M X5 X6 550i 650i","description":"\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke is proud to bring you our hand made Signature S63\/N63 Downpipes for the twin-turbo V8 BMW X5M, X6M, 550i, 650i, X5, X6 models.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePlease note that G-body vehicles with the N63B engine will need a different version of the downpipe - if you are buying a downpipe that also fits the F body cars, it will not fit your vehicle - Active is always doing R\u0026amp;D to ensure that you get a product with the proper fit.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan face=\"Liberation Serif, serif\"\u003eA turbo impeller wheel speed is mostly limited by the exhaust back pressure within the system. If one could eliminate some or most of this exhaust back pressure, the turbo will spool that much faster and effortlessly resulting in quicker engine revs and increased HP. The Active Autowerke Signature down pipes are designed with the intent to maximize power. These down pipes are created with the least amount of restrictions possible by utilizing a full 3\" piping throughout with the least amount of bends possible. What you will experience is a faster, more responsive engine because the turbo impeller now has the ability to spool that much faster. The end result is more power. Made from 304 stainless steel the handmade construction process ensures a robust and durable exhaust that will provide trouble free performance with the longevity to match.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan face=\"Liberation Serif, serif\"\u003eThis variant includes a pair of 4.5\" ultra high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant for 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e****PLEASE PROVIDE VIN # TO ASSURE ACCURACY ***\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMAY TAKE UP TO 2 WEEKs BEFORE SHIPPING AS THEY ARE CUSTOM MADE IN-HOUSE.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3 class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFull 3 inch diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept i\u003c\/b\u003en California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936522973269,"sku":"11-041","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-s63-n63-catted-downpipes-v8-bmw-x5-m-and-x6-m-x5-x6-550i-650i-32274758959189.webp?v=1749146272"},{"product_id":"active-autowerke-toyota-supra-mkv-a91-2-0-b46-catted-downpipe","title":"Active Autowerke Toyota Supra MKV A91 2.0 B46 Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cspan style=\"font-size: medium; color: #f50e0e;\"\u003e\u003cstrong\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003ePlease note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke Toyota Supra B46 Catted Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valve-tronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continuing into the G-chassis models. This proven 4 cylinder engine has now been introduced into the Supra MKV in the 2021 A91 2.0. The Active Autowerke B46 downpipe for the Supra A91 2.0 helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B46 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis B46 Signature down pipe utilizes 3-1\/2 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated a stainless flex joint and then to the ball flare to meet the OEM exhaust system.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4\" high flow GESI catalytic converter that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThe GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 300 and 500 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e3-1\/2 inch diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 300 to 500 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan style=\"text-decoration: underline;\" data-mce-fragment=\"1\"\u003e to original purchaser only\u003c\/span\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cbr\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B46 Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerkeu's downpipe, your B46 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B46 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3-1\/2 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the GESI super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that youu'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B46!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936535490645,"sku":"11-566","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-toyota-supra-mkv-a91-2-0-b46-catted-downpipe-32274781208661.webp?v=1750781827"},{"product_id":"active-autowerke-bmw-s58-f97-f98-x3m-x4m-downpipes-w-gesi-cat","title":"Active Autowerke BMW S58 F97\/F98 X3M\/X4M Downpipes w GESI CAT","description":"\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW X3M S58 Downpipes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the X3M and X4M helps unleash some of the potential that is restricted by the OEM downpipes.\u003c\/p\u003e\n\u003cp\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the S58 is a bit restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke X3M\/X4M S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eThis variant includes a pair of 4.5\" high flow GESI catalytic converters that will NOT produce a CEL!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eThe GESi G-Sport Ultra High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi UHO-Series Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eThe GESi UHO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\" style=\"line-height: 115%;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet or exceed the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-mce-fragment=\"1\" style=\"line-height: 115%;\" class=\"western\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eNO CEL for catalytic efficiency when using these downpipes\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eRated for 500 to 850 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eEasily bolts-on 2013 no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb data-mce-fragment=\"1\"\u003eexcept\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eGESI proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; font-variant: normal; letter-spacing: normal; font-style: normal; font-weight: normal; line-height: 115%; orphans: 2; widows: 2;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"margin-bottom: 0in; line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-variant: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"letter-spacing: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-style: normal;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-weight: normal;\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e\u003cspan\u003e \u003c\/span\u003eto original purchaser only\u003c\/span\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003e- NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cp data-mce-fragment=\"1\" style=\"line-height: 115%;\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"color: #000000;\" color=\"#000000\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-family: Liberation Serif, serif;\" face=\"Liberation Serif, serif\"\u003e\u003cspan data-mce-fragment=\"1\" style=\"font-size: medium;\" size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke S58 Signature Downpipes Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipes, your S58 can rev quicker, and deliver more horsepower and torque.\u003c\/p\u003e\n\u003cp\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAfter months of research and development, our engineers settled on a 3 inch diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up.\u003c\/p\u003e\n\u003cp\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your S58!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cb\u003eFITS S58 VEHICLE X3M and X4M\u003c\/b\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936538964053,"sku":"11-070","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-s58-f97-f98-x3m-x4m-downpipes-w-gesi-cat-32274786713685.webp?v=1749146281"},{"product_id":"active-autowerke-bmw-n26-f3x-m228i-328i-428i-gesi-catted-downpipe","title":"Active Autowerke BMW N26 F3X M228i 328i 428i GESI Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke BMW N26 Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cstrong\u003e\u003cspan\u003ePLEASE INCLUDE YOUR VIN AS THESE CARS HAVE EITHER A N20 OR N26 ENGINE - THIS DOWNPIPE WILL NOT FIT A N20 ENGINE.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the F-Chassis models beginning in 2012. The Active Autowerke N26 downpipe for the 228i, 328i and 428i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the N26 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis N26 Signature down pipe utilizes 3.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThis variant includes a 4\" ultra high flow GESI catalytic converter that will NOT produce a CEL\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDesigned to be as unrestrictive as possible\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eHigh flow 4\" GESI cat with 3.50\" piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool - improved power over stock\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 350 to 500 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eModular design for later upgrades\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer) \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eexcept\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFull 304 stainless steel construction\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in the catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 Year \/  25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke N20 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your N26 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while remaining daily drive-ability was the goal of our N26 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3.5 diameter pipe which utilizes the least number of bends possible. However, the Signature N26 down pipe still fits easily into the OEM location, with a painless installation process.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your N26!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936541061205,"sku":"11-111","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-n26-f3x-m228i-328i-428i-gesi-catted-downpipe-32274794643541.webp?v=1749146288"},{"product_id":"active-autowerke-bmw-n20-f3x-m228i-328i-428i-gesi-catted-downpipe","title":"Active Autowerke BMW N20 F3X M228i 328i 428i GESI Catted Downpipe","description":"\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke BMW N20 Downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cstrong\u003e\u003cspan\u003ePLEASE INCLUDE YOUR VIN AS THESE CARS HAVE EITHER A N20 OR N26 ENGINE - THIS DOWNPIPE WILL NOT FIT A N26 ENGINE.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the F-Chassis models beginning in 2012. The Active Autowerke N20 downpipe for the 228i, 328i and 428i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the N20 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke F-Chassis N20 Signature down pipe utilizes 3.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability.\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003eThis variant includes a 4\" ultra high flow GESI catalytic converter that will NOT produce a CEL\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi G-Sport High Output Catalytic Converter features full 304 stainless steel construction, including the substrate. GESi HO-Series Gen 2 Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. GESi proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\". These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe GESi HO-Series Catalytic Converters are rated for engines putting out between 500 and 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDesigned to be as unrestrictive as possible\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESI EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eHigh flow 4\" GESI cat with 3.50\" piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool - improved power over stock\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for 350 to 500 hp applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eModular design for later upgrades\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer) \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eexcept\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ein California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFull 304 stainless steel construction\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate in the catalytic converter is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eGESi proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core\u003cspan data-mce-fragment=\"1\" style=\"text-decoration: underline;\"\u003e to original purchaser only\u003c\/span\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The GESI catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive Autowerke N20 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your N20 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while remaining daily drive-ability was the goal of our N20 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 3.5 diameter pipe which utilizes the least number of bends possible. However, the Signature N20 down pipe still fits easily into the OEM location, with a painless installation process.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your N20!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40936542044245,"sku":"11-079 KIT","price":1499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-n20-f3x-m228i-328i-428i-gesi-catted-downpipe-32274804703317.webp?v=1749146292"},{"product_id":"active-autowerke-bmw-e9x-gen-2-signature-rear-exhaust-n52-325-328i","title":"Active Autowerke BMW E9X Gen 2 Signature Rear Exhaust N52 | 325 328i","description":"\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eActive Autowerke BMW Gen 2 Signature 328i Exhaust N52 Performance\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eOptimal power, performance and sound are the core values of our Active Autowerke BMW 328i exhaust system, designed to fit BMW 325i and 328i E9X N52 models. A free-flow design and beefy 80mm dual exhaust tips allow 35% to 40% more exhaust flow than the stock BMW 328i exhaust system.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThe increased flow minimizes back pressure, resulting in substantial HP and torque gains. The system's Brushed stainless steel construction also makes a bold visual statement, while also increasing durability. This BMW 328i performance exhaust produces a sporty, yet mellow tone.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eFactory-fit specifications are followed closely, yet our system allows\u003cspan\u003e \u003c\/span\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e14lbs in weight\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003ca href=\"http:\/\/www.e90post.com\/forums\/showthread.php?t=710181#\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" id=\"_GPLITA_2\" title=\"Click to Continue \u0026gt; by Text-Enhance\" style=\"border: 0px; margin: 0px; padding: 0px; text-decoration: underline; color: var(--body_font_color); transition: 0.25s; backface-visibility: hidden;\" in_rurl=\"http:\/\/i.trkjmp.com\/click?v=VVM6MjM1OTk6MTMyNTpzYXZpbmdzOjVmYzA0MmVjNzhmNTFmNWM5YmIwM2NkNjgzNTliNzlkOnotMTA5MC0zMzczOTp3d3cuZTkwcG9zdC5jb206MTEwNzg6c21hbGxfc3F1YXJl\"\u003esavings\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003eas opposed to the factory BMW exhaust.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThis exhaust features the Active Autowerke Muffler and Noise Cancellation Chamber to assist in reducing drone. Manufactured from 100% brushed 304 stainless steel, this clamp-on system is suited for the N52 owner looking to bring their BMW's performance to new heights.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eAdd our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/aatuning.com\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eBMW 328i Performance Tune\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003efor the best combination of power and reliability!\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eNOTE:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThis exhaust may not easily fit some of the XI (4WD) and Station Wagon Models - welding may be required for proper fitment of the exhaust to stock pipe.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eExhaust system requires cutting of the factory pipe for installation. Dimensions and cutting points are highlighted in the instructions.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eSome models have a round tubular pipe that makes the installation seamless. Other models have an oblong shape and will require welding instead of clamping.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003ciframe title=\"4k Golden Dust Animation Background video | Footage | Screensaver\" src=\"https:\/\/www.youtube.com\/embed\/m1YUmZRfgqU\" height=\"720\" width=\"1280\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"5\" face=\"Arial\"\u003e\u003cstrong aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eKey Features:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFits BMW 325i, 328i\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eFull 304 stainless steel construction with brushed finish\u003c\/li\u003e\n\u003cli\u003e3\" Mandrel-bent piping for optimum exhaust flow\u003c\/li\u003e\n\u003cli\u003eStraight through muffler design\u003c\/li\u003e\n\u003cli\u003eNCC (Drone Reduction)\u003c\/li\u003e\n\u003cli\u003eDual 80mm Active Autowerke Signature tips, staggered\u003c\/li\u003e\n\u003cli\u003eWeight Savings *14lbs lighter than stock BMW exhaust*\u003c\/li\u003e\n\u003cli\u003eDesigned to use existing factory mounts and hardware\u003c\/li\u003e\n\u003cli\u003eFully adjustable mounting positions\u003c\/li\u003e\n\u003cli\u003eFully adjustable tips\u003c\/li\u003e\n\u003cli\u003eIllustrated instruction manual\u003c\/li\u003e\n\u003cli\u003eOne year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e \u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40948005896277,"sku":"AA-ExhE9x328-G2-KIT","price":759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e9x-gen-2-signature-rear-exhaust-n52-325-328i-32321890156629.webp?v=1734166228"},{"product_id":"active-autowerke-bmw-f22-f30-f32-228i-328i-428-signature-exhaust","title":"Active Autowerke BMW F22\/F30\/F32 228I\/328I\/428 Signature Exhaust","description":"\u003cdiv class=\"nextLongDescription\" id=\"divLongDescription\" itemprop=\"description\"\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW F22\/F30\/F31 TOURING 228I\/328I Performance Exhaust\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke BMW F30 328I signature exhaust is located in a class all of its own. This product is a must for any enthusiast searching for true performance, added durability and an attractive weight advantage when it comes to the F30 328I performance signature exhaust.\u003c\/p\u003e\n\u003cp\u003eThis system is constructed from 100% polished 304-stainless steel and features adjustable 80 mm double walled tips, making it ideal both for two-door and four-door models (which also allows for cleaner fitment with diffusers). All exhaust tips are finished in a high polish luster that is a noticeable upgrade when comparing to the BMW factory counterpart.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW F22\/F30 228I\/328I Signature Exhaust Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis BMW F22\/F30 exhaust delivers everything we know you would want in a performance exhaust: eye-catching style, a sophisticated yet aggressive tone, weight savings, and most importantly measurable horsepower performance gains!\u003c\/p\u003e\n\u003cp\u003eFor the sound, check out the video at the bottom of the page to hear the aggressive new pitch the product produces for yourself! This muffler turns your 328I exhaust tone into a sporty but mellow tone that is not only exhilarating but non obtrusive on your ears.\u003c\/p\u003e\n\u003cp\u003eThe factory counterpart weighs 29 lbs. while the Active Autowerke Signature exhaust weighs only a mere 19 lbs. Weight savings are not the only attributes, this 328I performance exhaust has a modular design with its v-band clamps that makes fitment a snap. A revelation in BMW tuning.\u003c\/p\u003e\n\u003cp\u003eFinally, the real meat and potatoes will always be the horsepower numbers. On the in-house Active Autowerke Mustang dyno, our otherwise 100% stock 2013 328I test mule spun the rollers to the tune of an extra 9 RWHP, and 13 LB-FT of torque from just a quality muffler upgrade.\u003c\/p\u003e\n\u003cp\u003eTurbos love to exhale, and we are very anxious to continue to unearth just how much extra power is hiding in the stock exhaust system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp class=\"nextLongDescription\" itemprop=\"description\"\u003e\u003cstrong\u003eActive Autowerke F22\/F30\/F31 228I\/328I Performance Exhaust Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"nextLongDescription\" itemprop=\"description\"\u003e\n\u003cul\u003e\n\u003cli\u003eLarger diameter mandrel bent piping for maximum flow\u003c\/li\u003e\n\u003cli\u003eDurable, polished 100% 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eDouble-walled 80 mm signature stainless tips\u003c\/li\u003e\n\u003cli\u003eAdjustable tips with embossed Active Autowerke logo on the dual tip model\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/li\u003e\n\u003cli\u003eActual dyno measure results with gains of 10 + WHP over stock configuration\u003c\/li\u003e\n\u003cli\u003eWeighs 19 lbs. vs. the factory of 29 lbs.\u003c\/li\u003e\n\u003cli\u003eFitment for coupe, convertible and sedans\u003c\/li\u003e\n\u003cli\u003eComplete illustrated instruction manual\u003c\/li\u003e\n\u003cli\u003eTwo year limited warranty included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust system requires cutting of the factory pipe for installation. Dimensions and cutting measurements are included in the instructions.\u003c\/li\u003e\n\u003cli\u003eSome models have a round tubular pipe that makes the installation seamless. Other models have an oblong shape and will require welding instead of clamping.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eCheck Out Our 328i Product In Action:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"Active Autowerke BMW 328i Performance Exhaust | F30 328i Axel-Back\" src=\"https:\/\/www.youtube.com\/embed\/QKvJi4rQ51I\" height=\"495\" width=\"880\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40948007075925,"sku":"11-025","price":789.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f22-f30-f32-228i-328i-428-signature-exhaust-32321908637781.webp?v=1734166402"},{"product_id":"active-autowerke-bmw-e36-signature-rear-exhaust-gen-3-m3-325-328-by-bmw-tuner","title":"Active Autowerke BMW E36 Signature Rear Exhaust Gen 3 | M3 325 328 by BMW tuner","description":"\u003cdiv class=\"nextLongDescription\" id=\"divLongDescription\" itemprop=\"description\"\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eActive Autowerke BMW E36 M3 Siganture Exhaust Gen 3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eOur Signature Exhaust is often considered to be the most iconic, period-correct system available for your BMW E36. Extensive R\u0026amp;D, flawless design and superior construction are all reasons why our BMW E36 M3 Gen 3 Signature Exhaust is the number one choice for the E36 enthusiast today. This BMW exhaust is eye catching, built of 100% new Brushed Finish 304 stainless steel, sporting large 54mm twin inlet pipes, smooth mandrel bends, and dual 76mm tips with the Active Autowerke Logo embossed allow this BMW exhaustu00a0system to not only perform at a level above all other but also allow one to enjoy its beauty.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eActive Autowerke BMW Exhaust Engineering\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eEngineering with the ease of install in mind this is a true bolt on system like no other. Performance gains are definite and satisfying, thanks to substantially higher flow rates over the stock system. The full Active Autowerke BMW E36 M3 Exhaust system weighs in at just 34lbs allowing for some much needed weight savings over the stock system. Emitting a F1 type sound when bolted onto a stock car with it's unique hexagon style muffler this system has become the benchmark by which all other E36 systems are judged. Pair it with our\u003cspan\u003e \u003c\/span\u003e\u003ca aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\" href=\"http:\/\/aatuning.com\/products\/active-autowerke-bmw-e36-m3-cold-air-intake-system\" target=\"_blank\"\u003eBMW Cold Air Intake\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003efor the best power gains!\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Double-walled 76 mm stainless steel tips\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Dyno-tested performance\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-New Brushed Finish 100% 304 stainless steel\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Thicker exhaust flanges for a tighter seal\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Large 54 mm twin inlet pipes\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Mandrel Bent Piping\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-Illustrated instruction manual\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e-One year warranty\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e-True Bolt-on Design\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40948010549333,"sku":"11-001","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e36-signature-rear-exhaust-gen-3-m3-325-328-by-bmw-tuner-32321920467029.webp?v=1734166220"},{"product_id":"active-autowerke-bmw-f10-550i-signature-rear-exhaust-system","title":"Active Autowerke BMW F10 550I Signature Rear Exhaust System","description":"\u003cdiv id=\"divLongDescription\" class=\"nextLongDescription\" itemprop=\"description\"\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW F10 550I Performance Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003eFor BMW enthusiasts looking to separate their F10 550I rear exhaust system from the industry standard, we at Active Autowerke have just the performance upgrade for you! Our 510 550I performance exhaust system 90 mm tips makes the view from the rear an intimidating one, and it gives drivers noticeable gains in horsepower u2013 what more could you ask for in a BMW?\u003c\/p\u003e\n\u003cp\u003eThis rear exhaust system in completely constructed with durable, polished 100% 304 stainless steel for added sturdiness throughout the product. It also features four large, double-walled 90 mm signature stainless steel tips to complete the look of the rear exhaust. The Active Autowerke BMW F10 550I is in a class all its own. This upgrade boasts true performance, added durability, attractive weight advantage and innovative features.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke F10 550I Performance Exhaust System Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis BMW F10 5-Series exhaust delivers everything we know BMW enthusiasts would want in a performance rear exhaust including: a sophisticated yet aggressive tone, weight savings, andu00a0most importantly noticeable gains when it comes to horsepower!\u003c\/p\u003e\n\u003cp\u003eFirst, the addition of our F10 550I Signature Rear Exhaust creates a tone in the car that enthusiasts really love. This muffler spawns a sound that is much more assertive than the stock exhaust system, yet it is still refined. This results in an exhaust tone that is both thrilling and unobtrusive the perfect combination!\u003c\/p\u003e\n\u003cp\u003eNext, there is a pretty big difference between the weight of the 510 550I factory exhaust system and our signature exhaust a 10 lb. difference to be exact. The weight saved with our performance system translates to even more gains for your BMW F10 550I.\u003c\/p\u003e\n\u003cp\u003eLast, but definitely not least, is the most sought-after benefit of our 550I performance exhaust system the horsepower gains. On the in-house Active Autowerke Mustang dyno, we measured gains of 7+ WHP over stock configuration. Unearthing the extra power of a BMW owner's stock exhaust is what we are here for!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActive Autowerke F10 550I Signature Rear Exhaust System Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLarger diameter mandrel bent exhaust piping for maximum flow\u003c\/li\u003e\n\u003cli\u003eDurable, polished 100% 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eDouble-walled 90 mm signature stainless steel tips\u003c\/li\u003e\n\u003cli\u003eAdjustable tips with embossed Active Autowerke logo on the dual tip mode\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/li\u003e\n\u003cli\u003eActual dyno measure results with gains of 7+ WHP over stock configuration\u003c\/li\u003e\n\u003cli\u003eFitment for BMW M sport rear diffuse\u003c\/li\u003e\n\u003cli\u003eComplete illustrated instruction manual\u003c\/li\u003e\n\u003cli\u003eTwo year warranty included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"Active Autowerke | BMW 550i Downpipe Dyno (Downpipe +Exhaust)\" src=\"https:\/\/www.youtube.com\/embed\/No8SmgJrRCc\" height=\"495\" width=\"880\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":40948012744789,"sku":"11-031","price":1299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f10-550i-signature-rear-exhaust-system-32321966014549.webp?v=1734166579"},{"product_id":"active-autowerke-bmw-e9x-m3-signature-rear-exhaust-gen-2","title":"Active Autowerke BMW E9X M3 Signature Rear Exhaust Gen. 2","description":"\u003cp\u003eTrue performance, durability, and attractive weight advantages with innovative features places the Active Autowerke E9X BMW M3 exhaust in a class of its own. This system is constructed from 100% 304-stainless steel and features adjustable Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models (also allows for cleaner fitment with diffusers).\u003c\/p\u003e\n\u003cp\u003eThis system uses factory style flanges making it a complete bolt on system that requires no cutting or welding. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust.\u003c\/p\u003e\n\u003cp\u003eThe sound is unobtrusive, with a rich mellow tone and delivers a solid 5+hp, with key gains in the mid-range. In addition, the Active Autowerke E9X M3 Signature Exhaust system features large 3\" piping for maximum exhaust flow while maintaining enough back-pressure to result in horsepower increases across the entire RPM range.\u003c\/p\u003e\n\u003cp\u003eThe factory E9X M3 muffler features a Noise Canceling Chamber inside the muffler and Active Autowerke has retained this feature by adding two custom Active Autowerke noise canceling chambers (NCC)on each muffler to reduce\/minimize the drone (the 'booming' noise some muffler emit at cruising speeds, ~3500 rpm).\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke E9X M3 Signature Exhaust System provides increase in horsepower, great sound and appearance making it a must for the true M3 enthusiasts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003ca href=\"http:\/\/images.activeautowerke.com\/Installation%20PDF%27s\/vehiclewaiver2.pdf\" title=\"Off road waiver\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLarge 3-inch mandrel bent piping for maximum flow\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDurable, 100% 304 brushed stainless steel\u003c\/li\u003e\n\u003cli\u003eDouble-walled 76mm Signature stainless tips\u003c\/li\u003e\n\u003cli\u003eRevolutionary NCC -Noise Cancelling Chamber\u003c\/li\u003e\n\u003cli\u003eAdjustable Tips with Embossed Active Autowerke Logo\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/li\u003e\n\u003cli\u003eGains of 5+ HP over stock configuration; Additional HP with our programmed software\u003c\/li\u003e\n\u003cli\u003eBMW factory style hardware makes a truly easy installation with no need for cutting or re-welding\u003c\/li\u003e\n\u003cli\u003eWeighs 40 Lbs vs. the factory of 55.1 Lbs.\u003c\/li\u003e\n\u003cli\u003eFitment for Coupe,Convertible and Sedans\u003c\/li\u003e\n\u003cli\u003eComplete illustrated instruction manual\u003c\/li\u003e\n\u003cli\u003eTwo year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"Active Autowerke | E9X M3 Signature Exhaust Generation 2\" src=\"https:\/\/www.youtube.com\/embed\/F-pSqbWkwKQ\" height=\"495\" width=\"880\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Silver","offer_id":40948017135701,"sku":null,"price":1599.0,"currency_code":"USD","in_stock":true},{"title":"For convertible silver","offer_id":40948017168469,"sku":null,"price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e9x-m3-signature-rear-exhaust-gen-2-32322062680149.webp?v=1734166407"},{"product_id":"active-autowerke-bmw-signature-exhaust-system-includes-active-f-brace","title":"Active Autowerke BMW Signature Exhaust System includes Active F-brace","description":"\u003cp\u003e\u003cstrong\u003eNOTE: THESE ARE BUILT TO ORDER AND MAY TAKE UP TO 2 WEEKS TO BUILD.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eActive Autowerke is proud to announce the release of our Signature F8X M3\/M4 Exhaust System.\u003c\/p\u003e\n\u003cdiv\u003eThis system is the result of countless hours of R\u0026amp;D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a modular exhaust system that will provide enough flow to support power levels way above the stock S55.\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eThis is a full exhaust system which includes a variant of our single midpipe and does require a separate midpipe. If you want the unique sound of our equal length midpipe, you should consider our equal length midpipe plus our Maad Maxx rear exhaust.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe stock S55 Midpipe is a dual pipe system from each turbo that leads to the rear muffler. The resulting sound is far from pleasant, and without any real scavenging effect the turbo lag is fairly pronounced. By converting to a single 3.5\" pipe directly after the downpipes, our system promotes exhaust scavenging along with higher exhaust velocity to produce a quicker spool, more power, and a much smoother exhaust note.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eWe believe that we've built the best performing exhaust on the market. With the reduced back pressure and large single-pipe design you can expect exhaust velocity to remain as high as possible throughout the entire system. Our design is also capable of handling much higher power levels than stock. It's over engineered to have no issues handling the increased exhaust volume from extensive modifications including turbo upgrades. All Active Autowerke exhausts are designed and manufactured for performance, and our S55 exhaust is no different. Instead of copying the OEM exhaust, we started with a blank canvas in order to create a system as close to perfect as possible.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eMADE IN THE USA\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMandrel bent 304-stainless construction\u003c\/li\u003e\n\u003cli\u003eCompletely TIG Welded (No MIG Welding at all)\u003c\/li\u003e\n\u003cli\u003eFlow efficient Y-Pipe design\u003c\/li\u003e\n\u003cli\u003ePerfect fitment with adjustable 90mm double walled tips\u003c\/li\u003e\n\u003cli\u003eTrue 3.5u201d turbo back design\u003c\/li\u003e\n\u003cli\u003eUses OEM valve motor\u003c\/li\u003e\n\u003cli\u003eDesigned to be used at stock power levels along with highly modified engines\u003c\/li\u003e\n\u003cli\u003eNo permanent modifications required\u003c\/li\u003e\n\u003cli\u003eManufactured in house at our facility in Miami, FL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e***These systems are built to order and require a 2-3 week lead time before shipping.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/GZLrpcKUyFw\" title=\"Active Autowerke F8X M3 M4 Signature Exhaust Fly-By\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/hFRbP-Xf5dE\" title=\"Active Autowerke M2 \/ M3 \/ M4 Signature Exhaust System in the Miami Tunnel\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Brushed Silver","offer_id":40948018020437,"sku":"11-045C","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black","offer_id":40948018053205,"sku":"11-045C","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Tips","offer_id":40948018282581,"sku":"11-045C","price":3450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-signature-exhaust-system-includes-active-f-brace-32322186838101.webp?v=1734167119"},{"product_id":"active-autowerke-bmw-f87-m2-competition-signature-exhaust-system-includes-active-f-brace","title":"Active Autowerke BMW F87 M2 Competition Signature Exhaust System includes Active F-brace","description":"\u003cp\u003eActive Autowerke is proud to announce the release of our Signature F87 M2 Competition Exhaust System.\u003c\/p\u003e\n\u003cdiv\u003eThis system is the result of countless hours of R\u0026amp;D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, we have created a full exhaust system that will provide enough flow to support power levels way above the stock S55.\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003eThis is a full exhaust system which includes a variant of our single midpipe and does require a separate midpipe. If you want the unique sound of our equal length midpipe, you should consider our equal length midpipe plus our valved axle back rear exhaust.\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe stock S55 midpipe is a dual pipe system from each turbo that leads to the rear muffler. The resulting sound is far from pleasant, and without any real scavenging effect the turbo lag is fairly pronounced. By converting to a single 3.5\" pipe directly after the downpipes, our system promotes exhaust scavenging along with higher exhaust velocity to produce a quicker spool, more power, and a much smoother exhaust note.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eWe believe that we've built the best performing exhaust on the market. With the reduced back pressure and large single-pipe design you can expect exhaust velocity to remain as high as possible throughout the entire system. Our design is also capable of handling much higher power levels than stock. It's over engineered to have no issues handling the increased exhaust volume from extensive modifications including turbo upgrades. All Active Autowerke exhausts are designed and manufactured for performance, and our S55 exhaust is no different. Instead of copying the OEM exhaust, we started with a blank canvas in order to create a system as close to perfect as possible.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eMADE IN THE USA\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/images.activeautowerke.com\/Installation%20PDF%27s\/vehiclewaiver2.pdf\" title=\"Off road waiver\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMandrel bent 304-stainless construction\u003c\/li\u003e\n\u003cli\u003eCompletely TIG Welded (No MIG Welding at all)\u003c\/li\u003e\n\u003cli\u003eFlow efficient Y-Pipe design\u003c\/li\u003e\n\u003cli\u003ePerfect fitment with adjustable 90mm double walled tips\u003c\/li\u003e\n\u003cli\u003eTrue 3.5 turbo back design includes full single midpipe\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUses OEM valve motor\u003c\/li\u003e\n\u003cli\u003eDesigned to be used at stock power levels along with highly modified engines\u003c\/li\u003e\n\u003cli\u003eNo permanent modifications required\u003c\/li\u003e\n\u003cli\u003eManufactured in house at our facility in Miami, FL.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e***These systems are built to order and require a 2-3 week lead time before shipping.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Brushed Silver","offer_id":40948019200085,"sku":"11-051C","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black","offer_id":40948019232853,"sku":"11-051C","price":3050.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Tips","offer_id":40948019265621,"sku":"11-051C","price":3450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f87-m2-competition-signature-exhaust-system-includes-active-f-brace-32322262073429.webp?v=1734166762"},{"product_id":"active-autowerke-bmw-f3x-340i-440i-performance-valved-rear-exhaust-gen-2","title":"Active Autowerke BMW F3X 340i | 440i Performance Valved Rear Exhaust GEN 2","description":"\u003cp\u003e\u003cspan size=\"3\"\u003e\u003cb\u003eDOES NOT FIT 440 Gran Coupe.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"3\"\u003e\u003cb\u003eTrue BMW performance, durability, and attractive weight advantages with innovative features places the Active Autowerke BMW F3x 340i exhaust in a class of its own. And now Active Autowerke has developed Gen 2 of this model which has been enhanced to take advantage of the OEM valve system. This system is constructed from 100% Brushed 304-stainless steel and features adjustable brushed, black or carbon Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models. And now the improved sound becomes more pronounced when the valve is opened by the ECU.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"3\"\u003eRather than creating a complete exhaust system, Active Autowerke opted for a compact design built in a smaller package to deliver more value. The Active Autowerke F3x 340i Gen 2 BMW Rear Exhaust System provides an increase in horsepower, better sound and appearance making it the choice for the avid BMW enthusiast. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Our innovative muffler can design provides maximum volume with the exhaust valve open for a true sport sound. This exhaust delivers a wide-open sound, a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out non intrusive with a rich mellow tone with the valve closed. Just like replacing the BMW factory rear exhaust, the Active Autowerke BMW Performance rear exhaust does it in much the same way, if not better by using a much beefier, heavy duty TORCA style exhaust clamp. TORCA clamps are known for their strength and sealing capabilities to make that tight seal. Other features like height adjustable mounting tabs make this exhaust easy to install.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eLarge mandrel bent piping for maximum flow\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eUses factory valve system for maximum exhaust sound\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eDurable, Brushed 100% 304 stainless steel for durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eDouble-walled signature brushed, black or carbon stainless tips\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eAdjustable Tips with Embossed Active Autowerke Logo\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eGains of 12-15 HP over stock configuration\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eTight seal with use of TORCA style exhaust clamps\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eHeight adjustable mounting brackets make installation easy\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eFactory curb weight 27.0 Lbs, Active 340i weighs 22.0 Lbs\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eFitment for Coupe, Convertible and Sedans\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eComplete illustrated instruction manual\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan size=\"3\"\u003e\u003cspan face=\"Calibri, sans-serif\"\u003eTwo year warranty\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F30 340i, xi (Sedan) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F32 440i, xi (Coupe) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F33 440i, xi (Convertible) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F36 440i (Coupe) 2013 -\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"BMW F32 435 N55 Active Autowerke performance exhaust DIY\" src=\"https:\/\/www.youtube.com\/embed\/zlW08GJflOg\" height=\"495\" width=\"880\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"BMW F3x 340i Rear Exhaust with Brushed tips by Active Autowerke","offer_id":40948020510805,"sku":"11-115FC","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F3x 340i Rear Exhaust with Black tips by Active Autowerke","offer_id":40948020543573,"sku":"11-115FC","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F3x 340i Rear Exhaust with Carbon tips by Active Autowerke","offer_id":40948020576341,"sku":"11-115FC","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f3x-340i-440i-performance-valved-rear-exhaust-gen-2-32322462548053.webp?v=1734166777"},{"product_id":"active-autowerke-bmw-f3x-335i-435i-performance-valved-rear-exhaust-gen-2","title":"Active Autowerke BMW F3X 335i | 435i Performance Valved Rear Exhaust GEN 2","description":"\u003cp\u003e\u003cspan size=\"3\"\u003e\u003cb\u003eTrue BMW performance, durability, and attractive weight advantages with innovative features places the Active Autowerke BMW F3x 335i exhaust in a class of its own. And now Active Autowerke has developed Gen 2 of this model which has been enhanced to take advantage of the OEM valve system. This system is constructed from 100% Brushed 304-stainless steel and features adjustable brushed, black or carbon Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models. And now the improved sound becomes more pronounced when the valve is opened by the ECU.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"3\"\u003eRather than creating a complete exhaust system, Active Autowerke opted for a compact design built in a smaller package to deliver more value. The Active Autowerke F3x 335i Gen 2 BMW Rear Exhaust System provides an increase in horsepower, better sound and appearance making it the choice for the avid BMW enthusiast. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Our innovative muffler can design provides maximum volume with the exhaust valve open for a true sport sound. This exhaust delivers a wide-open sound, a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out non intrusive with a rich mellow tone with the valve closed. Just like replacing the BMW factory rear exhaust, the Active Autowerke BMW Performance rear exhaust does it in much the same way, if not better by using a much beefier, heavy duty TORCA style exhaust clamp. TORCA clamps are known for their strength and sealing capabilities to make that tight seal. Other features like height adjustable mounting tabs make this exhaust easy to install.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eLarge mandrel bent piping for maximum flow\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eUses factory valve system for maximum exhaust sound\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eDurable, Brushed 100% 304 stainless steel for durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eDouble-walled signature brushed, black or carbon stainless tips\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eAdjustable Tips with Embossed Active Autowerke Logo\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eGains of 12-15 HP over stock configuration\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eTight seal with use of TORCA style exhaust clamps\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eHeight adjustable mounting brackets make installation easy\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eFactory curb weight 27.0 Lbs, Active 335i weighs 22.0 Lbs\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eFitment for Coupe, Convertible and Sedans\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eComplete illustrated instruction manual\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\"\u003e\u003cspan size=\"3\"\u003eTwo year warranty\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan size=\"4\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cspan size=\"4\"\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F30 335i, xi (Sedan) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F32 435i, xi (Coupe) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F33 435i, xi (Convertible) 2013 -\u003c\/li\u003e\n\u003cli\u003eBMW F36 435i (Coupe) 2013 -\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"BMW F32 435 N55 Active Autowerke performance exhaust DIY\" src=\"https:\/\/www.youtube.com\/embed\/zlW08GJflOg\" height=\"495\" width=\"880\" allowfullscreen=\"\" referrerpolicy=\"strict-origin-when-cross-origin\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"BMW F3x 340i Rear Exhaust with Brushed tips by Active Autowerke","offer_id":40948023656533,"sku":"11-115C","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F3x 340i Rear Exhaust with Black tips by Active Autowerke","offer_id":40948023689301,"sku":"11-115C","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F3x 340i Rear Exhaust with Carbon tips by Active Autowerke","offer_id":40948023722069,"sku":"11-115C","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f3x-335i-435i-performance-valved-rear-exhaust-gen-2-32322574647381.webp?v=1734166417"},{"product_id":"active-autowerke-bmw-m3-and-m4-g80-and-g82-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW M3 and M4 G80 and G82 Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eActive Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80\/G82 which comprises this rear axle-back valved exhaust, a mid-pipe with x-pipe or single and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80\/G82 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of G80\/G82 BMW M3\/M4 collection rear exhaust.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke G80\/G82 rear exhaust was carefully engineered to increase the sound level over the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our G80\/G82 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all G80\/G82 BMW M3\/M4\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G80\/G82 M3 and M4 Rear Exhaust Section will be a precise fit. Every Active Autowerke G80\/G82 Rear Exhaust Section is test-fitted on our in-house G80\/G82 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948429619285,"sku":null,"price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With Matte Black Tips","offer_id":40948429652053,"sku":null,"price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon Fiber Tips","offer_id":40948429684821,"sku":null,"price":2899.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon Over Black Chrome Tips","offer_id":40948450033749,"sku":null,"price":2899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-m3-and-m4-g80-and-g82-valved-rear-axle-back-exhaust-32327305920597.webp?v=1734426334"},{"product_id":"active-autowerke-g4x-bmw-m240i-valved-rear-axle-back-exhaust","title":"Active Autowerke G4X BMW M240i Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eG4X BMW M240i Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our G4X BMW M240i collection.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke M240i rear exhaust was carefully engineered to eliminate the overly quiet sound of the factory M240i exhaust, while also allowing for optimum flow and resonance by reusing the actuator from the BMW valve. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for the BMW 'M' badge. We believe our rear exhaust offers the best combination of sound and performance versus other systems on the market today. This axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory! And we haven't mentioned the quad tips on the exhaust further enhancing the car's look in addition to the sound.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - this rear exhaust is intended for those who only wish to replace their stock rear section so the stock midpipes will need to be cut - all connecting hardware is provided.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our M240i Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eQuad tips for that M- look\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit G42 M240i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G4X M240i Rear Exhaust Section will be a precise fit. Every Active Autowerke M240i Rear Exhaust Section is test-fitted on our in-house Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948491845717,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":true},{"title":"With Matte Black Tips","offer_id":40948491878485,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon Fiber Tips","offer_id":40948491911253,"sku":null,"price":2399.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon Over Black Chrome Tips","offer_id":40948491944021,"sku":null,"price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-g4x-bmw-m240i-valved-rear-axle-back-exhaust-32327353630805.webp?v=1734426509"},{"product_id":"active-autowerke-bmw-g80-g82-m3-m4-signature-race-only-exhaust-system-goliath","title":"Active Autowerke BMW G80\/G82 M3\/M4 Signature RACE ONLY Exhaust System - GOLIATH","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e**This product is a part of the Active Autowerke Motorsport Collection. It is for RACE and OFF-ROAD USE ONLY!\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Off road waiver\" href=\"http:\/\/images.activeautowerke.com\/Installation%20PDF%27s\/vehiclewaiver2.pdf\"\u003e\u003cstrong\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eActive Autowerke is proud to release the unique Signature Race Only catback exhaust system for the BMW G80 M3 and G82 M4. This brings our expertise with a single mid-pipe and leverages our many years of performance tuning for BMW M-cars. It provides a deeper tone to the stock exhaust and is not intended for street use since it gives a loud sound as the exhaust is fully open at all times (does not use OEM valves). We have also added the option of an exhaust DUMP right after the downpipes to maximize the sound.\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhile these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full race only exhaust system for the G80\/G82 which provides the raucous sound which some BMW enthusiasts crave and cannot be provided by a street legal exhaust system. This race only remake of the stock exhaust results in a G80\/G82 with a loud, deep and aggressive sound. You will feel the thrill of driving a race car when the throttle is opened.\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis exhaust system upgrade was designed and engineered to replace the entire exhaust system with only no cuts needed in the stock exhaust. It is a bolt-on that can be performed by most and the stock exhaust can be reinstated if needed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis system provides the maximum flow available and provides a race car growl expected but not often realized from a BMW M-Series car. The resonators reduce some of the rasp from the S58 engine without compromising the wide-open sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Active Autowerke race only exhaust system is constructed of 100% 304 brushed stainless steel and has a industry standard warranty against rust. \u003c\/span\u003e\u003cspan\u003eThis latest addition to the Signature line up is a must for the true Enthusiast looking for a better sounding car to match amazing performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eFeatures:\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDurable 100% 304 Stainless Steel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eNo cuts needed with Factory Style Flanges and clamps\u003c\/li\u003e\n\u003cli\u003eInstall using factory style fittings\u003c\/li\u003e\n\u003cli\u003eOne year warranty\u003c\/li\u003e\n\u003cli\u003eReplaces stock exhaust for race sound and maximum flow.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Active Autowerke","offers":[{"title":"Full Race Only Exhaust \/ Brushed Tips","offer_id":40948509245525,"sku":"11-116","price":3499.0,"currency_code":"USD","in_stock":true},{"title":"Full Race Only Exhaust \/ Matte Black Tips","offer_id":40948545257557,"sku":"11-116B","price":3499.0,"currency_code":"USD","in_stock":true},{"title":"Full Race Only Exhaust \/ Carbon Tips","offer_id":40948545290325,"sku":"11-116C","price":3899.0,"currency_code":"USD","in_stock":true},{"title":"Full Race Only Exhaust \/ Carbon Over Black Chrome","offer_id":40948545323093,"sku":"11-116CBC","price":3899.0,"currency_code":"USD","in_stock":true},{"title":"Full Race only Exhaust with Dump \/ Brushed Tips","offer_id":40948509278293,"sku":"11-116D","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Full Race only Exhaust with Dump \/ Matte Black Tips","offer_id":40948545355861,"sku":"11-116BD","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Full Race only Exhaust with Dump \/ Carbon Tips","offer_id":40948545388629,"sku":"11-116CD","price":4899.0,"currency_code":"USD","in_stock":true},{"title":"Full Race only Exhaust with Dump \/ Carbon Over Black Chrome","offer_id":40948545421397,"sku":"11-116CBCD","price":4899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-g80-g82-m3-m4-signature-race-only-exhaust-system-goliath-32327550828629.webp?v=1734425423"},{"product_id":"active-autowerke-bmw-g87-m2-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW G87 M2 Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eG87 BMW M2 Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eActive Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G87 M2. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G87 which comprises this rear axle-back valved exhaust, a mid-pipe with equal length x-pipe or single and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G87 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of G80\/G82 BMW M3\/M4 collection rear exhaust.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke G87 rear exhaust was carefully engineered to increase the sound level over the factory M2 exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our G87 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all G87 BMW M2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G87 M2 Rear Exhaust Section will be a precise fit. Every Active Autowerke G87 Rear Exhaust Section is test-fitted on our in-house G87 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Stainless Brushed Tips","offer_id":40948546601045,"sku":"11-119","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black Tips","offer_id":40948546732117,"sku":"11-119B","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Fiber Tips","offer_id":40948546928725,"sku":"11-119C","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Over Black Chrome Tips","offer_id":40948546961493,"sku":"11-119CB","price":2899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-g87-m2-valved-rear-axle-back-exhaust-32327559577685.webp?v=1734426319"},{"product_id":"active-autowerke-bmw-f22-m235i-performance-valved-rear-exhaust-gen-2","title":"Active Autowerke BMW F22 M235i Performance Valved Rear Exhaust GEN 2","description":"\u003cp\u003e\u003cstrong\u003eG87 BMW M2 Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eActive Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G87 M2. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G87 which comprises this rear axle-back valved exhaust, a mid-pipe with equal length x-pipe or single and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G87 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of G80\/G82 BMW M3\/M4 collection rear exhaust.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke G87 rear exhaust was carefully engineered to increase the sound level over the factory M2 exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our G87 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all G87 BMW M2\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G87 M2 Rear Exhaust Section will be a precise fit. Every Active Autowerke G87 Rear Exhaust Section is test-fitted on our in-house G87 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Stainless Brushed Tips","offer_id":40948547813461,"sku":null,"price":1199.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black Tips","offer_id":40948547846229,"sku":null,"price":1199.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Fiber Tips","offer_id":40948547878997,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true},{"title":"Carbon Over Black Chrome Tips","offer_id":40948547911765,"sku":null,"price":1399.0,"currency_code":"USD","in_stock":true}]},{"product_id":"active-autowerke-bmw-f22-m235i-performance-valved-rear-exhaust-gen-3","title":"Active Autowerke BMW F22 M235i Performance Valved Rear Exhaust GEN 2","description":"\u003cp\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cb\u003eTrue BMW performance, durability, and attractive weight advantages with innovative features places the Active Autowerke BMW F22 235i exhaust in a class of its own. And now Active Autowerke has developed Gen 2 of this model which has been enhanced to take advantage of the OEM valve system. This system is constructed from 100% Brushed 304-stainless steel and features adjustable brushed, black or carbon Active Autowerke double walled tips, making it ideal both for 2-door and 4-door models. And now the improved sound becomes more pronounced when the valve is opened by the ECU.\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eRather than creating a complete exhaust system, Active Autowerke opted for a compact design built in a smaller package to deliver more value. The Active Autowerke F22 235i Gen 2 BMW Rear Exhaust System provides an increase in horsepower, better sound and appearance making it the choice for the avid BMW enthusiast. The system is a straight-through design providing substantial improvements to gas flow over the factory exhaust. Our innovative muffler can design provides maximum volume with the exhaust valve open for a true sport sound. This exhaust delivers a wide-open sound, a solid 15+hp boost and key gains in the midrange with the valve open while the sound comes out non intrusive with a rich mellow tone with the valve closed. Just like replacing the BMW factory rear exhaust, the Active Autowerke BMW Performance rear exhaust does it in much the same way, if not better by using a much beefier, heavy duty TORCA style exhaust clamp. TORCA clamps are known for their strength and sealing capabilities to make that tight seal. Other features like height adjustable mounting tabs make this exhaust easy to install.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan size=\"4\" style=\"font-size: large;\"\u003e\u003cb\u003eKey Features:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eLarge mandrel bent piping for maximum flow\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eUses factory valve system for maximum exhaust sound\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eDurable, Brushed 100% 304 stainless steel for durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eDouble-walled signature brushed, black or carbon stainless tips\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eAdjustable Tips with Embossed Active Autowerke Logo\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eImproved power \u0026amp; torque throughout entire RPM band\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eGains of 12-15 HP over stock configuration\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eTight seal with use of TORCA style exhaust clamps\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eHeight adjustable mounting brackets make installation easy\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eFactory curb weight 27.0 Lbs, Active 335i weighs 22.0 Lbs\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eFitment for Coupe, Convertible and Sedans\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003eComplete illustrated instruction manual\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli style=\"line-height: 100%;\"\u003e\u003cspan size=\"3\" style=\"font-size: medium;\"\u003e\u003cspan face=\"Calibri, sans-serif\" style=\"font-family: Calibri, sans-serif;\"\u003eTwo year warranty\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan size=\"4\" style=\"font-size: large;\"\u003eApplications:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F22 M235i 2013 \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ciframe title=\"BMW F32 435 N55 Active Autowerke performance exhaust DIY\" src=\"https:\/\/www.youtube.com\/embed\/zlW08GJflOg\" height=\"495\" width=\"880\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM235i Install Guide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ciframe title=\"Active Autowerke |  F3X 335\/435 Exhaust\" src=\"https:\/\/www.youtube.com\/embed\/ZZH5rpojuwk\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"BMW F22 M235i Rear Exhaust with 90mm brushed tips","offer_id":40948549714005,"sku":"11-115T","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F22 M235i Rear Exhaust with 90mm black tips","offer_id":40948549746773,"sku":"11-115TB","price":1199.0,"currency_code":"USD","in_stock":true},{"title":"BMW F22 M235i Rear Exhaust with 90mm carbon tips","offer_id":40948549779541,"sku":"11-115TB","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f22-m235i-performance-valved-rear-exhaust-gen-2-32327595196501.webp?v=1734425065"},{"product_id":"active-autowerke-bmw-f87-m2c-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW F87 M2C Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eThe Ultimate F87 BMW M2C Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINSTALLATION NOTE: If you are using this rear exhaust with an Active Autowerke resonated midpipe, you may have double resonated connecting pipes to reduce the rasp inherent in this car. If you have the double pipe, you must flip the exhaust hangers from the factory configuration (drivers side goes to passenger and vice versa) and reverse them to fit.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our F87 BMW M2C and M2CS collection.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke F87 rear exhaust was carefully engineered to eliminate the unflattering sound of the factory M2C and M2CS exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe (either single or equal length) offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our F87 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all F87 BMW M2\/M2CS\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every F87 M2C and M2CS Rear Exhaust Section will be a precise fit. Every Active Autowerke F87 Rear Exhaust Section is test-fitted on our in-house F87 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With stainless Brushed Tips","offer_id":40948552138837,"sku":"11-067","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"With Matte  Black tips","offer_id":40948552171605,"sku":"11-067B","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"With  Carbon Fiber Tips","offer_id":40948552204373,"sku":"11-067C","price":2699.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon Over Black Tips","offer_id":40948552433749,"sku":"11-067CB","price":2699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-f87-m2c-valved-rear-axle-back-exhaust-32327605223509.webp?v=1734425072"},{"product_id":"active-autowerke-bmw-x3m-and-x4m-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW X3M and X4M Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eBMW F97 X3M \/ F98 X4M Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDue to continued requests from our customers, Active Autowerke is pleased to release the Active Autowerke Valved Rear Exhaust for the X3M and X4M. While these SUVs have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the X3M\/X4M which comprises this rear axle-back valved exhaust, a single mid-pipe and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a F97\/F98 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of F97\/F98 BMW X3M\/X4M collection rear exhaust.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke F97\/F98 rear exhaust was carefully engineered to increase the sound level over the factory X3M and X4M exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there may be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes may have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our F97\/F98 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all F97\/F98 BMW X3M\/X4M\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every F97\/F98 X3M and X4M Rear Exhaust Section will be a precise fit. Every Active Autowerke X3M\/X4M Rear Exhaust Section is test-fitted on our in-house F97\/F98 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948554661973,"sku":"11-103","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With Matte  black tips","offer_id":40948554694741,"sku":"11-103B","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With  carbon fiber tips","offer_id":40948554727509,"sku":"11-103C","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"With carbon over black tips","offer_id":40948554760277,"sku":"11-103CB","price":2899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-x3m-and-x4m-valved-rear-axle-back-exhaust-32327619248213.webp?v=1734426682"},{"product_id":"active-autowerke-bmw-g2x-g4x-m240i-m340i-m440i-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW G2X G4X M240i\/M340i \/ M440i Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eG2X BMW M340i\/M440i Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our G2X BMW M340i and M440i collection.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke M340i\/M440i rear exhaust was carefully engineered to eliminate the overly quiet sound of the factory M340i and M440i exhaust, while also allowing for optimum flow and resonance by reusing the actuator from the BMW valve. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for the BMW 'M' badge. We believe our rear exhaust offers the best combination of sound and performance versus other systems on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory! And we haven't mentioned the quad tips on the exhaust further enhancing the car's look in addition to the sound.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - this rear exhaust is intended for those who only wish to replace their stock rear section so the stock midpipes will need to be cut - all connecting hardware is provided.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our M340i\/M440i Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eQuad tips to enhance that M-look\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all G-series M340i and M440i\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G2X M340i and M440i Rear Exhaust Section will be a precise fit. Every Active Autowerke M340i\/M440i Rear Exhaust Section is test-fitted on our in-house Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948557545557,"sku":"11-089","price":1999.0,"currency_code":"USD","in_stock":true},{"title":"With Matte  black tips","offer_id":40948557578325,"sku":"11-089B","price":1999.0,"currency_code":"USD","in_stock":true},{"title":"With  carbon fiber tips","offer_id":40948557611093,"sku":"11-089C","price":2399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-g2x-g4x-m240i-m340i-m440i-valved-rear-axle-back-exhaust-32327648313429.webp?v=1734425243"},{"product_id":"active-autowerke-bmw-g80-m3-and-g82-m4-valved-rear-axle-back-exhaust","title":"Active Autowerke BMW G80 M3 and G82 M4 Valved Rear Axle-back Exhaust","description":"\u003cp\u003e\u003cstrong\u003eG80\/G82 BMW M3\/M4 Rear Exhaust\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eActive Autowerke is proud to release the Active Autowerke Valved Rear Exhaust for the BMW G80 M3 and G82 M4. While these cars have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M-car. In order to solve this, Active Autowerke has created a full exhaust system for the G80\/G82 which comprises this rear axle-back valved exhaust, a mid-pipe with x-pipe or single and a set of GESI catted downpipes. Together, this remake of the stock exhaust results in a G80\/G82 with an amazing sound. You will feel like you are driving a true M-car again.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible but to maximize the enjoyment of the drive. For over 40 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by the introduction of G80\/G82 BMW M3\/M4 collection rear exhaust.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke G80\/G82 rear exhaust was carefully engineered to increase the sound level over the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance by reusing the actuators from the BMW valves. Every effort was made in addressing the overly quiet sound of the stock OEM exhaust while designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe and catted downpipes offers the best combination of sound and performance versus any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE - we do offer a version of this rear exhaust for those who only wish to replace their stock rear section (so keeping stock midpipes) but there will be an additional subsequent charge if you later move to an Active or other midpipe as the connecting pipes will have to be replaced. Also you should note that the dramatic difference in sound will only come with replacing the midpipe - the rear offers an upgrade but is more subtle.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003eLow, Deep Sound with stock Valve Control\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our G80\/G82 Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all G80\/G82 BMW M3\/M4\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eActive Autowerke GUARANTEES that each and every G80\/G82 M3 and M4 Rear Exhaust Section will be a precise fit. Every Active Autowerke G80\/G82 Rear Exhaust Section is test-fitted on our in-house G80\/G82 Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948565966933,"sku":"11-086","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With Matte  black tips","offer_id":40948565999701,"sku":"11-086B","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With  carbon fiber tips","offer_id":40948566032469,"sku":"11-086C","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"With Carbon over Black Chrome Tips","offer_id":40948569473109,"sku":null,"price":2899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-g80-m3-and-g82-m4-valved-rear-axle-back-exhaust-32327672856661.webp?v=1734425245"},{"product_id":"active-autowerke-maad-maxx-f8x-bmw-m3-m4-rear-exhaust-section-3-can-valved","title":"Active Autowerke Maad Maxx - F8X BMW M3 \u0026 M4 Rear Exhaust Section - 3 Can Valved","description":"\u003cp\u003e\u003cstrong\u003eThe Ultimate F8X BMW M3 \u0026amp; M4 Rear Exhaust System - now with valves\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAt Active Autowerke, it's not ONLY about making as much power as possible. For over 30 years, power has been the end result of improved performance due to our relentless desire to develop a refined, quality product. This philosophy behind our performance parts is best represented by one of the newest additions to our F80 BMW M3 and F82 BMW M4 collection.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke F8X rear exhaust was carefully engineered to eliminate the unflattering sound of the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for an \"M\" car. We believe our rear exhaust combined with our mid-pipe offers the deepest sound and best performance of any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory! And NOW, after many requests from our dedicated customers, we are introducing a valved version of the ultimate exhaust which has been dubbed \"Maad Maxx\" by our team. We will update dyno charts later but this exhaust flows even better with its valved system.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"http:\/\/f80.bimmerpost.com\/forums\/showthread.php?t=1194246\" title=\"active autowerke m4 exhaust review\" target=\"_blank\"\u003eSee what actual customers are saying on BimmerPost!\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca title=\"Off road waiver\" href=\"http:\/\/images.activeautowerke.com\/Installation%20PDF%27s\/vehiclewaiver2.pdf\"\u003e***Before your order ships you MUST sign and return the Off Road Use Only Waiver available HERE. Please email, fax or take a photo of the completed form. You can email it to your sales rep or to info@activeautowerke.com and you can fax it to us at (305) 253-8921***\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e18+ WHP gain over stock\u003csup\u003e*\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003e30+ LB-FT gain over stock\u003csup\u003e*\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuicker turbo spool\u003c\/li\u003e\n\u003cli\u003eLow, Deep Rumble\u003c\/li\u003e\n\u003cli\u003eFlex joints to reduce vibration\u003c\/li\u003e\n\u003cli\u003eDouble-canned muffler to reduce resonance\u003c\/li\u003e\n\u003cli\u003eEach exhaust test-fit on our F8X Exhaust Fixture\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit all F80 BMW M3\/F82 BMW M4\u003c\/li\u003e\n\u003cli\u003eIncludes all necessary installation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*W\u003cem\u003ehen paired with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/products\/f8x-bmw-m3-m4-mid-pipe\" title=\"f8x bmw m3 bmw m4 performance mid pipe\"\u003eActive Autowerke F8X Mid-Pipe\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive Autowerke F8x Mid-Pipe\u003c\/li\u003e\n\u003cli\u003eActive Autowerke F8X Rear Exhaust Section\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eResults:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRED Line Stock Figures: 380 \u003cem\u003eWHP | \u003c\/em\u003e371 \u003cem\u003eWTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBLUE Line Full Active Autowerke Exhaust: 398 \u003cem\u003eWHP | 401 WTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGOLD Line Full Active Autowerke Exhaust Run 2: 397 \u003cem\u003eWHP | \u003c\/em\u003e398 \u003cem\u003eWTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNote:\u003cstrong\u003e \u003cem\u003eActive Autowerke Full Exhaust System is recommended for, BUT NOT LIMITED TO, off-road or racing applications.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRefinement Meets Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe OEM F8X exhaust utilizes the services of middle and rear silencer as well a pair of exhaust valves. It is supposed to be a freely-flowing exhaust that produces an external sound that meets the demands of a M3 or M4.\u003c\/p\u003e\n\u003cp\u003eThe middle silencer has a small crossover that allows for noise dampening while the rear silencer (muffler) has a reflection chamber on either end that re-directs exhaust gases to the opposite side they entered from (drive's side exhaust exits on passenger side). When the exhaust valves are closed, this helps eliminate the back pressure buildup that occurs during noise dampening.\u003c\/p\u003e\n\u003cp\u003eAfter analyzing the factory exhaust, we realized less would be more in regards to our F8X exhaust.\u003c\/p\u003e\n\u003cp\u003eWe began with a complete redesign of the mid-pipes. This involved drastically increasing exhaust flow as well as reducing the uneven, out-of-sync turbocharger's sound that many F8X owners have complained about on the forums. We were able to achieve this on our F8X Mid-Pipe (sold separately) by using a single pipe that not only cancels out the offensive sound, but allows unrestricted exhaust flow.\u003c\/p\u003e\n\u003cp\u003eThe most noticeable difference between the Active Autowerke F8X Rear Exhaust Section and the BMW factory exhaust is how we utilized the muffler. Our design incorporates two mufflers that create a huge resonance chamber to further cancel out the weed eater noise.\u003c\/p\u003e\n\u003cp\u003eThis design also allows exhaust gases to crossover freely without being forced in a certain direction - eliminating back pressure without sacrificing that deep, aggressive rumble that some turbocharged cars are known for.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cem\u003eNote: Active Autowerke GUARANTEES that each and every F8X Rear Exhaust Section will be a precise fit. Every Active Autowerke F8X Rear Exhaust Section is test-fitted on our in-house F8X Exhaust Fixture as part of our quality control measures.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"With Stainless Brushed Tips","offer_id":40948578648149,"sku":"ExhF8XM-REAR-G3","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With Matte  black tips","offer_id":40948578680917,"sku":"11-073B","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"With  carbon fiber tips","offer_id":40948578713685,"sku":"11-073C","price":2899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-maad-maxx-f8x-bmw-m3-m4-rear-exhaust-section-3-can-valved-32327703822421.webp?v=1734426858"},{"product_id":"active-autowerke-bmw-e46-325i-330i-sport-headers","title":"Active Autowerke BMW E46 325I 330I Sport Headers","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW E46 3-Series Sports Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLooking for an easy way to watch the performance numbers of your BMW E46 325I 330I climb? It really is a simple solution! Swap the E46's factory header with integrated cats, known to be highly restrictive, for a BMW E46 performance header that is much more free-flowing.\u003c\/p\u003e\n\u003cp\u003eThere are a few problems when it comes to the factory manifolds of the E46 325I 330I, which are the reason owners aren't releasing the full potential of their BMW. For one, the exhaust catalysts are situated right against the cylinder head which cause an extreme amount of heat to build up. Also, cylinders one through three, and four through six, are each channeled through a single pipe, greatly restricting the air flow. These characteristics are responsible for the production of more heat, due to an inherently bottleneck system, which effects the overall performance and power of the car.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits of Active Autowerke BMW E46 Performance Header\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo address the problems with the factory manifolds without compromising durability, the stock exhaust catalysts are removed when the Active Autowerke 3-series sports header is installed. Our E46 performance headers are constructed completely from 100% polished 304 stainless steel and the gains produced have been dyno-tested. Be sure to check out our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/products\/active-autowerke-bmw-325i-330i-exhaust\"\u003eE46 BMW rear exhaust\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003efor even more horsepower!\u003c\/p\u003e\n\u003cp\u003eWhile an increase in speed is the main draw for installing our E46 3-series performance header, the added horsepower isn't the only benefits. Our performance headers are heard to ignore because they were designed to add a lot more style and a unique look to your ride!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBMW E46 325I 330I Performance Header Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCreates optimum flow and eliminates restriction\u003c\/li\u003e\n\u003cli\u003eSuitable for Naturally Aspirated and Force Induction\u003c\/li\u003e\n\u003cli\u003eDyno-tested performance gains\u003c\/li\u003e\n\u003cli\u003eBolts up to existing factory exhaust system for a precise fit\u003c\/li\u003e\n\u003cli\u003eComplete mounting hardware\u003c\/li\u003e\n\u003cli\u003eSuitable for naturally aspirated and supercharged forced induction applications\u003c\/li\u003e\n\u003cli\u003e100% 304 stainless steel construction for long life\u003c\/li\u003e\n\u003cli\u003eTwo year warranty with free tech support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e-HEADER SYSTEM IS DESIGNED FOR OFF ROAD USE AND RACING APPLICATION ONLY\u003c\/p\u003e\n\u003cp\u003e-CAR WILL HAVE CEL WITHOUT ACTIVE AUTOWERKE SOFTWARE UPGRADE FOR OFF-ROAD USE\u003c\/p\u003e\n\u003cp\u003e-WILL NOT FIT RHD CARS\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003e\u003ci aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eFYI here is an image of the restrictive E46 325\/330 stock header...\u003c\/i\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg border=\"0\" height=\"617\" width=\"926\" src=\"https:\/\/farm5.static.flickr.com\/4011\/5076725908_7bd4c2aa29_b.jpg\" alt=\"BMW performance header for the BMW NM 325i, 330i\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41600180912213,"sku":"11-009","price":759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e46-325i-330i-sport-headers-1182140771.webp?v=1753738770"},{"product_id":"bmw-n52-n51-performance-exhaust-headers-128i-328i-330i","title":"BMW N52 \/ N51 Performance Exhaust Headers | 128i, 328i, 330i","description":"\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e\n- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca title=\"Active Autowerke N52 Software Tune Upgrade\" href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41600191889493,"sku":"11-022","price":759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-bmw-n52-n51-performance-exhaust-headers-128i-328i-330i-1182140758.webp?v=1753738290"},{"product_id":"active-autowerke-bmw-g2x-b58-m340i-m440i-active-aflow-catted-downpipe-2024-and-older","title":"Active Autowerke BMW G2X B58 M340i M440i Active Aflow Catted Downpipe (2024 and older)","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003e\u003cspan\u003eNO PERFORMANCE TUNE NEEDED.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eSHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1 class=\"western\"\u003e\u003cbr\u003e\u003c\/h1\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvet ronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and carried over to the G-chassis models. The Active Autowerke B58 downpipe for the M340i and M440i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke B58 Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter less than the stock diameter of 80mm. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4.5\" Active Aflow catalytic converter that will NOT produce a CEL for cat efficiency guaranteed by Active Autowerke (full replacement within first two years of ownership).\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe Active Aflow super high output catalytic converter features full 304 stainless steel construction, including the substrate. Active Aflow Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. Active's proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\" due to cat efficiency errors. These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe Active Aflow Catalytic Converters are rated for engines putting out up to 800 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights for cat efficiency and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The Active Aflow catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for up to 800 hp applications \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept i\u003c\/b\u003en California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core to original purchaser only\u003cstrong\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B58 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your B58 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B58 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 4.5 diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the Active super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B58!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603758653525,"sku":"11-062A","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-g2x-b58-m340i-m440i-active-aflow-catted-downpipe-2024-and-older-1182409333.webp?v=1753912418"},{"product_id":"active-autowerke-bmw-b58-f3x-m240i-340i-440i-aflow-catted-downpipe-2024-and-older","title":"Active Autowerke BMW B58 F3X M240i 340i 440i Aflow Catted Downpipe (2024 and older)","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\u003cstrong\u003eNO PERFORMANCE TUNE NEEDED.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp class=\"western\"\u003e \u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eSHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003e\u003cstrong\u003eNOTE: Fitment applies to US model cars only unless specifically stated. We cannot guarantee fitment to non-US model cars.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and carried over to the G-chassis models. The Active Autowerke B58 downpipe for the M340i and M440i helps unleash some of the potential that is restricted by the OEM downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the B58 is quite restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe Active Autowerke B58 Signature down pipe utilizes 4.5 diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. It then tapers down to 3.5\" where we've incorporated a stainless flex joint and then down to 80mm to meet the OEM exhaust system. We never drop the diameter less than the stock diameter of 80mm. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThis variant includes a 4.5\" Active Aflow catalytic converter that will NOT produce a CEL for cat efficiency guaranteed by Active Autowerke (full replacement within first two years of ownership).\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe Active Aflow super high output catalytic converter features full 304 stainless steel construction, including the substrate. Active Aflow Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant, perfect for use on 1996 and newer vehicles. Active's proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\" due to cat efficiency errors. These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003eThe Active Aflow Catalytic Converters are rated for engines putting out up to 800 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights for cat efficiency and failed emissions tests!\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e\u003cspan size=\"3\"\u003ePlease Note: These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNOTE:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e \u003c\/span\u003eFederal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The Active Aflow catalytic converter will produce emissions that will meet the standards set by the EPA, not CARB.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"western\"\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eFeatures:\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eNO CEL for catalytic efficiency when using this downpipe\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive EPA registered high flow and fully OBD2 compliant\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e4.50\" diameter piping allows for maximum power output\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eQuicker turbo spool\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eRated for up to 800 hp applications \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eWithstands up to 1500 F\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEasily bolts-on no cutting or welding required\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eDurable construction from TIG welded 304 stainless steel\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003ePrecise fitment\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eUltra high flow 400 cell per square inch catalyst\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eEPA compliant for use on OBD2 vehicles (1996 and newer)\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eexcept i\u003c\/b\u003en California\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eActive proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core to original purchaser only\u003cstrong\u003e - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMade in Miami, Florida\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"western\"\u003e\u003cstrong\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"4\"\u003eActive Autowerke B58 Signature Downpipe Benefits\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eThe speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipe, your B58 can rev quicker, and deliver more horsepower and torque.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our B58 downpipe. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eAfter months of research and development, our engineers settled on a 4.5 diameter pipe which utilizes the least number of bends possible. The large volume helps the turbo spool as quickly as possible by eliminating back pressure during spool up. We are ushering in a new era in performance where we maintain air control standards without significant losses in power by using the Active super high output catalytic converter in our signature downpipe.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan color=\"#000000\"\u003e\u003cspan face=\"Liberation Serif, serif\"\u003e\u003cspan size=\"3\"\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your B58!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603762126933,"sku":"11-062A","price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-b58-f3x-m240i-340i-440i-aflow-catted-downpipe-2024-and-older-1182409325.jpg?v=1753912178"},{"product_id":"f8x-bmw-m3-m4-mid-pipe-includes-active-f-brace-and-90-fixed-price-shipping-in-lower-48-states","title":"F8X BMW M3 \u0026 M4 Mid Pipe includes Active F-brace and $90 Fixed Price Shipping in Lower 48 States","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\u003cstrong\u003eNOW AVAILABLE WITH EXHAUST DUMP.\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp\u003eActive Autowerke has been an industry leader in engineering high quality BMW performance products for over 41 years. Dedicated to improving performance with the highest quality products, Active Autowerke is synonymous with making power. Our philosophy on developing refined BMW performance parts, with power in mind, and providing them to a large BMW community can be best characterized by our F80 M3 and F82 mid pipe a valuable addition to our F8X BMW collection.\u003c\/p\u003e\n\u003cp\u003eThe Active Autowerke F8X Mid Pipe was specifically designed to eliminate the highly restrictive nature of the OEM F80 M3 and F82 M4 mid pipe thus creating optimal exhaust flow and drastically improving performance. In addressing the annoying sound ( described by many like that of a weed-eater ) we needed to better understand the issue. After much research and testing we discovered the synchronization of the Turbos as the main factor in the sound. The solution was a single mid pipe which eliminated much of the annoying sound. The next challenge was making a large 3.5\" pipe ( needed for optimum performance ) fit without ground clearance issues - thus the oval pipe. Engineered for an exact fit on both the F80 M3 and F82 M4, the difference in power with this mid pipe will be noticeable the moment it is installed!\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eKEY FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e18+ WHP over stock\u003csup\u003e*\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003e30+ LB-FT over stock\u003csup\u003e*\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved performance from less back pressure\u003c\/li\u003e\n\u003cli\u003eDeeper \u0026amp; throatier exhaust note\u003c\/li\u003e\n\u003cli\u003eLess restrictive, more free flowing\u003c\/li\u003e\n\u003cli\u003eLighter weight than factory system\u003c\/li\u003e\n\u003cli\u003eQuicker turbo spool\u003c\/li\u003e\n\u003cli\u003eIncreased low end and mid-range power\u003c\/li\u003e\n\u003cli\u003eSingle-pipe design eliminates cheap weed-eateru00a0sound from factory exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003ePerformance gains when paired with\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/products\/f8x-bmw-m3-m4-rear-exhaust\" title=\"F8X BMW M3\/M4 Performance Exhaust\" target=\"_blank\"\u003eActive Autowerke F8X Rear Exhaust Section\u003c\/a\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMUSTANG DYNO RESULTS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/c1.staticflickr.com\/1\/628\/21607095396_132b0d3266_c.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive Autowerke F8X Mid Pipe\u003c\/li\u003e\n\u003cli\u003eActive Autowerke F8X Rear Exhaust Section\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eF8X BMW M3\/M4 Exhaust Results:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRED Line Stock Figures: 380 \u003cem\u003eWHP |\u003c\/em\u003e 371 \u003cem\u003eWTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBLUE Line Full Active Autowerke Exhaust: 398 \u003cem\u003eWHP\u003c\/em\u003e | 401 \u003cem\u003eWTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGOLD Line Full Active Autowerke Exhaust Run 2: 397 \u003cem\u003eWHP\u003c\/em\u003e | 398 \u003cem\u003eWTQ\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eActive Autowerke Full Exhaust System is recommended for, BUT NOT LIMITED TO, off road or racing applications.\u003c\/em\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePERFORMANCE MID PIPE REDESIGN\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBMW applied two silencers in the middle and rear of the factory F8X exhaust system to assist with noise dampening. The middle silencer has a small crossover internally. This helps with drone, however, it is also quite restrictive and amplifies the uneven, out-of-sync turbocharger sound that many owners have complained about.\u003c\/p\u003e\n\u003cp\u003eUpon analyzing the F8X exhaust, we came to the decision that we can accomplish more with much less therefore designing our F80 M3 and F82 M4 exhaust started with the highly restrictive mid pipe. With our design, we were able to drastically increasing exhaust flow, while virtually eliminating the \"dueling 3-cylinders\" sound.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eM3\/M4 MID PIPE PERFORMANCE ADVANTAGES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn order to get the most possible gains, we had to apply some trade secrets to our mid pipe design u00a0many of our competitors have done the same. However, we wanted our F8X Mid Pipe to stand out from the rest.\u003c\/p\u003e\n\u003cp\u003eUnlike the design of the factory mid pipe, and the mid pipes of our competitors, we decided on a singular pipe design. This was for a few reasons:\u003c\/p\u003e\n\u003cp\u003eFirst and foremost, to cancel out that cheap weed eater sound that is so frequently complained about. Not only does this design cancel out the un-M3-like sound, it creates a deeper, more harmonious sound that most have come to expect from a performance car built by the \/\/\/M Division. Naturally, with this increased flow, we were able to pull out a surprising amount of power. Eliminating this extra pipe also allowed us to save some valuable weight, which as you know, translates to improved performance!\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/dlg0xVQCMH4\" title=\"Active Autowerke F8X M3 M4 S55 Mid-Pipe Demonstration\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Active Autowerke | Signature F8X M3 M4 Mid Pipe with Stock Rear Exhaust\" src=\"https:\/\/www.youtube.com\/embed\/G8FnS5VGlGM\" height=\"495\" width=\"880\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"resonated","offer_id":41603773464661,"sku":"11-037R KIT","price":999.0,"currency_code":"USD","in_stock":true},{"title":"non-resonated","offer_id":41603773497429,"sku":"11-037 KIT","price":799.0,"currency_code":"USD","in_stock":true},{"title":"with exhaust dump","offer_id":41603773530197,"sku":null,"price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-f8x-bmw-m3-m4-mid-pipe-includes-active-f-brace-and-90-fixed-price-shipping-in-lower-48-states-1182409317.webp?v=1753911934"},{"product_id":"connecting-pipes-for-f8x-bmw-m3-m4-equal-length","title":"Connecting pipes for F8X BMW M3 \u0026 M4 Equal Length","description":"\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\u003cspan\u003eThese are replacement connecting pipes for those discerning BMW F8X M3\/M4 owners who have installed Active Autowerke's Equal Length Midpipe (patent pending). They are also applicable to our Single F8X Midpipe.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"w straight pipes","offer_id":41603775594581,"sku":"11-076NR","price":299.0,"currency_code":"USD","in_stock":true},{"title":"w resonated pipes","offer_id":41603775627349,"sku":"11-076","price":499.0,"currency_code":"USD","in_stock":true},{"title":"w AWE Switchpath custom connection","offer_id":41603775660117,"sku":"11-076A","price":499.0,"currency_code":"USD","in_stock":true},{"title":"w resonated AWE Switchpath custom connection","offer_id":41603775955029,"sku":"11-076AR","price":699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-connecting-pipes-for-f8x-bmw-m3-m4-equal-length-1182409307.webp?v=1753911700"},{"product_id":"bmw-e9x-m3-power-pulley-kit-by-bmw-tuner-active-autowerke","title":"BMW E9X M3 Power Pulley KIT by BMW Tuner, Active Autowerke","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdDescription\"\u003eThis is a complete bolt on kit engineered for BMW Performance tuning. Uses aircraft grade billet 6061 Hard Coat Anodized Aluminum for the strength and durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdDescription\"\u003eThe BMW S65 V8 engine as used in the BMW E9X M3 does not make available all of the horsepower that the engine actually produces. This Power Pulley KIT through a redesign of the crankshaft outer pulley, actually releases this developed and available horsepower.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eThis performance product is designed to not only to make available horsepower but to still retain all the inherent qualities of your BMW E9X M3 without sacrificing reliability.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAnother key element in the launching of this under-drive pulley system was the task of manufacturing a DPK, a double side belt for the air conditioner. Whenever you alter the crankshaft main pulley size, it will also influence the size of the A\/C belt. As of late production 2007, BMW change over the belt configuration to a double sided groove belt on the E9X M3. Active Autowerke philosophy is always to try and maintain components like a BMW fashion, as if BMW would have done. This would be a first in the BMW performance industry to have an aftermarket DPK belt produced.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eTo further enhance the system, Active Autowerke will provide an extra spare DPK belt with the kit. This would be for emergency circumstances if the need ever arises.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eTested and ran on the in-house Mustang dyno here at Active Autowerke quantifies a true measurable 12 + horsepower gain on a completely stock BMW M3.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAnodized in a hard finish as revealed by the almost jet black color also makes this BMW performance product seem obscure within the engine bay. This performance upgrade is easy to install and can be fully reversible if the need arises. It is packaged to be simple with a crank pulley and correct matching belts in a all inclusive KIT.\u003cbr\u003ePlease verify your E9X M3 on the A\/C belt if single sided or double sided (DPK) when ordering.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eA must for the true BMW M enthusiast that wants to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\"... COME PLAY WITH POWER...\"\u003c\/strong\u003eu00a0\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdDescription\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ctable aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_TableFeatures\" border=\"0\"\u003e\n\u003ctbody aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_Titulo\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_TableCell2\"\u003e\u003cb aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cspan size=\"5\"\u003eKey Features:\u003c\/span\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eBMW HP gains: 10 RWHP ~ 12+ HP over stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eComplete Bolt on System and is easily reversible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAircraft Grade Billet 6061 Hard Coat Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eSimple and easy to install\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIncludes Replacement DRIVE and A\/C Belts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eEXTRA spare DPK belt provided where applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eDesigned for use on DCT and Manual models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eReduces Rotational Mass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eDoes not cause overheating found in smaller pulley designs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003ePair with AA Software for Additional Gains\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAvailable for all production dates ( Single sided \u0026amp; DPK belts )\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e \u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003ciframe title=\"Active Autowerke: E92 BMW M3 Performance Bolt Ons Before And After Dyno\" src=\"https:\/\/www.youtube.com\/embed\/_IqUdwz-5oc\" height=\"495\" width=\"880\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cspan size=\"6\"\u003e\u003cb aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eHow to tell if you have a DPK or SINGLE sided belt on your V8 powered M3:\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\n\u003cli aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eTake a look at the water pump belt, you will see that the belt is smooth on one side and has multiple grooves on the flip side. This is referred to as a SINGLE side belt.\u003c\/li\u003e\n\u003cli aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eTake a look at the A\/C belt, if the belt looks, feels similar to that of the SINGLE sided belt that drives the water pump. We designate this as a 2007 ONLY model or models produced up 05\/2008 which carries a single sided PK belt.\u003c\/li\u003e\n\u003cli aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eTake a look at the A\/C belt, if the belt hasu00a0\u003cspan aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003emultiple grooves on either side\u003c\/span\u003e, then you have a DPK belt. Which is a belt with double PK grooves on both sides. Production model should fall from 6\/2008 and up.u00a0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"BMW Single PK | 2007 -5\/2008","offer_id":41603778740309,"sku":"AAPP1-E9XME","price":399.0,"currency_code":"USD","in_stock":true},{"title":"BMW Double PK | From 6\/2008 on","offer_id":41603778773077,"sku":"AAPP2-E9XML-G2","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-bmw-e9x-m3-power-pulley-kit-by-bmw-tuner-active-autowerke-1182409301.webp?v=1753911584"},{"product_id":"bmw-oil-distribution-mounting-block-for-gauges","title":"BMW Oil Distribution Mounting Block for Gauges","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp\u003e\u003cspan\u003eSince I can remember, BMW has always been a great car but lacks certain components to be truly Ultimate. One being the proverbial oil pressure gauge. To help resolve this dilemma, one has to resort to the aftermarket like VDO, Autometer, AEM, etc. to source such a gauge. You can make your selection based on size, face back light, digital or analog, and electronic or mechanical. Regardless of your selection, you have to tap into the oil artery to monitor the engine oil pressure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Active Autowerke ODB, Oil Distribution Block was created just to solve this problem\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eWith a 12x1.50mm pitch, it mounts in the original position of the factory oil pressure switch, eliminating the need to drill or tap\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRetains the factory oil pressure switch to still satisfy the oil warning light in the instrument cluster\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHas a dedicated port to install an additional electric oil pressure sender or fitting to connect a mechanical oil pressure feed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCan be used by turbochargers or superchargers requiring an oil feed sourceu00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDesign feature of the Active Autowerke ODB\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHas to be small and compact. One could drill and tap a block of aluminum to do the task, but... The ODB is the smallest 2 part ODB on the market currently for BMW application today\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWith a 2 part unit, the rotating design allows for a FULL 360 degree rotation. This allows the sender (regardless of size) to rotate as it fits against the oil filter housing without any interference\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEngine bay picture shows a BMW E9x M3 S65 V8 with oil pressure sender installed using a ODB-KIT. \u003cstrong\u003eLook at the space constraints.\u003c\/strong\u003eu00a0small size and flexible 360 degree rotation comes in very handy.u00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCNC machining allows multiple wrench placements to ensure a secure torque\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e12mm x 1.50mm pitch makes the installation factory like for most BMWs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1\/8-27NPT suitable for most aftermarket senders currently producedu00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eComplete with (2) crush rings for a seamless installationu00a0\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFactory oil pressure sender and \/ or VDO oil pressure sender NOT INCLUDED with ODB-KITu00a0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603782017109,"sku":"ODB-KIT","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-bmw-oil-distribution-mounting-block-for-gauges-1182409298.webp?v=1753911575"},{"product_id":"active-autowerke-bmw-differential-support-bracket-dsb-e36-325-328-m3-by-bmw-tuner","title":"Active Autowerke BMW Differential Support Bracket (DSB) E36 | 325 328 M3 by BMW Tuner","description":"\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"tit\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdSlogan\"\u003eStrengthens the weakest link in your BMW E36's drivetrain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePLEASE NOTE THAT THESE HAVE BEEN UPGRADED AND ARE NOW MADE FROM STAINLESS STEEL SO ARE NO LONGER POWDER COATED.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdDescription\"\u003eNo matter how well-engineered, every system has an Achilles Heel and in the BMW E36 driveline it's the single, main mounting bolt that holds the differential in place. Until it doesn't, that is.\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eThis vulnerable diff bolt can fail very easily under any extreme driving condition. If youu2019re lucky, the bent or broken bolt is able to be extracted. If you're not, the entire diff needs to be removed in order to extract the broken bolt. The Active Autowerke DSB kit comes with everything to make this installation complete; a new Diff bolt is also included as part of the package. Our DSB can easily be installed by a qualified tech in under an hour and will eliminate this BMW Achilles Heel problem forever.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdDescription\"\u003eIf you own a BMW E36 M3 powered with a turbocharger, supercharger, a Track Junkie or just love to work on your 0 - 60 time. Then leave the worries to Active Autowerke to cover your Achilles Heel while you concentrate on the road ahead. This is just one of the many performance BMW parts that we develop so that you can,\u003cstrong\u003e\u003cspan\u003e \u003c\/span\u003e\"...COME PLAY WITH POWER...\"\u003c\/strong\u003e\u003cbr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\"\u003e\"...So deserving, I think every E36 with a M50, S50, S52 engine should have one installed...\" Mike Hugh, Vice President, Active Autowerke.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"tit\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblProdSlogan\"\u003eApplication:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW 325i 1992-95\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW 328i 1996-99\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBMW M3 1995-99\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ctable aria-setsize=\"0\" aria-posinset=\"0\" class=\"helve12-blanco\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_TableFeatures\" border=\"0\"\u003e\n\u003ctbody aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_Titulo\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_TableCell2\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan aria-setsize=\"0\" aria-posinset=\"0\" class=\"tit\" aria-level=\"0\" id=\"ctl00_ContentPlaceHolder1_lblFEATURES\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAddresses known failure tendency of the front differential bolt\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eA true bolt-on alternative, available in \"DIY kit\" form\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eHeavy-guage stainless steel construction for maximum strength and durability\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePrecision machining and alignment assures precise fit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eGentle on the driveline, thanks to the additional support\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTested to withstand the rigors of 500+ HP\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003ctd aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eStep-by-step instructions for an easy install\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603784114261,"sku":"13-004","price":429.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-differential-support-bracket-dsb-e36-325-328-m3-by-bmw-tuner-1182409291.webp?v=1753911340"},{"product_id":"active-autowerke-bmw-e9x-gen-2-signature-rear-exhaust-n52-325-328i-by-bmw-tuner","title":"Active Autowerke BMW E9X Gen 2 Signature Rear Exhaust N52 | 325 328i by BMW Tuner","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eActive Autowerke BMW Gen 2 Signature 328i Exhaust N52 Performance\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eOptimal power, performance and sound are the core values of our Active Autowerke BMW 328i exhaust system, designed to fit BMW 325i and 328i E9X N52 models. A free-flow design and beefy 80mm dual exhaust tips allow 35% to 40% more exhaust flow than the stock BMW 328i exhaust system.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThe increased flow minimizes back pressure, resulting in substantial HP and torque gains. The system's Brushed stainless steel construction also makes a bold visual statement, while also increasing durability. This BMW 328i performance exhaust produces a sporty, yet mellow tone.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eFactory-fit specifications are followed closely, yet our system allows\u003cspan\u003e \u003c\/span\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e14lbs in weight\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan color=\"#000000\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003ca href=\"http:\/\/www.e90post.com\/forums\/showthread.php?t=710181#\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" id=\"_GPLITA_2\" title=\"Click to Continue \u0026gt; by Text-Enhance\"\u003esavings\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003eas opposed to the factory BMW exhaust.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThis exhaust features the Active Autowerke Muffler and Noise Cancellation Chamber to assist in reducing drone. Manufactured from 100% brushed 304 stainless steel, this clamp-on system is suited for the N52 owner looking to bring their BMW's performance to new heights.\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eAdd our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/aatuning.com\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eBMW 328i Performance Tune\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003efor the best combination of power and reliability!\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eNOTE:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThis exhaust may not easily fit some of the XI (4WD) and Station Wagon Models - welding may be required for proper fitment of the exhaust to stock pipe.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eExhaust system requires cutting of the factory pipe for installation. Dimensions and cutting points are highlighted in the instructions.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eSome models have a round tubular pipe that makes the installation seamless. Other models have an oblong shape and will require welding instead of clamping.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eVideo Sound Clip:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003ciframe width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/eUaaHGRSvYQ\" title=\"Active Autowerke Gen II Sport Exhuast and Mid-pipe\"\u003e\u003c\/iframe\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eKey Features:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFits BMW 325i, 328i\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eFull 304 stainless steel construction with brushed finish\u003c\/li\u003e\n\u003cli\u003e3\" Mandrel-bent piping for optimum exhaust flow\u003c\/li\u003e\n\u003cli\u003eStraight through muffler design\u003c\/li\u003e\n\u003cli\u003eNCC (Drone Reduction)\u003c\/li\u003e\n\u003cli\u003eDual 80mm Active Autowerke Signature tips, staggered\u003c\/li\u003e\n\u003cli\u003eWeight Savings *14lbs lighter than stock BMW exhaust*\u003c\/li\u003e\n\u003cli\u003eDesigned to use existing factory mounts and hardware\u003c\/li\u003e\n\u003cli\u003eFully adjustable mounting positions\u003c\/li\u003e\n\u003cli\u003eFully adjustable tips\u003c\/li\u003e\n\u003cli\u003eIllustrated instruction manual\u003c\/li\u003e\n\u003cli\u003eOne year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003e\u003cspan size=\"5\" face=\"Arial\"\u003eDyno Graph (muffler only):\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cimg src=\"https:\/\/farm9.staticflickr.com\/8177\/8029747238_6e90a8d2a8_c.jpg\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" width=\"570\" height=\"800\" border=\"0\"\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e \u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603786047573,"sku":"AA-ExhE9x328-G2-KIT","price":759.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e9x-gen-2-signature-rear-exhaust-n52-325-328i-by-bmw-tuner-1182409284.webp?v=1753911220"},{"product_id":"active-autowerke-bmw-e46-m3-exhaust-section-1-with-100-cell-hi-flow-catalysts-by-bmw-tuner","title":"Active Autowerke BMW E46 M3 Exhaust SECTION 1 with 100 CELL Hi Flow Catalysts by BMW Tuner","description":"\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eActive Autowerke BMW E46 M3 Exhaust SECTION 1 with 100 cell Hi Flow catalyst\u003c\/strong\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eCombine the Active Autowerke Exhaust SECTION 1 with a pair of Hi Flow 100 cell metallic catalysts and you have part of a winning combination for your BMW E46 M3.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eDesign and Concept:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003ca aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\" href=\"http:\/\/aatuning.com\/products\/active-autowerke-bmw-e36-m3-signature-exhaust-gen-3\" target=\"_blank\"\u003e\u003cimg alt=\"Factory BMW exhaust SECTION 1 fr BMW E46 M3\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Sec-1_small.jpg?1692\" width=\"123\" height=\"87\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eWhy create an exhaust SECTION 1 when the USA version BMW factory SECTION 1 already comes from the factory as a straight through design with two separate pipes and resonators already built in on one side?\u003cbr\u003eIf a performance aftermarket headers was installed, how much better could one gain against the already BMW factory SECTION 1?\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cstrong\u003eSolution:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cimg alt=\"BMW Factory Section 1 with RASP like sound\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/BMWsec-1_small.jpg?1694\" width=\"90\" height=\"96\"\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eThe Active Autowerke Exhaust SECTION 1 only comes into play if the E46 M3 already has a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e46-2000-05-3-series\/products\/active-autowerke-bmw-e46-m3-header\" title=\"BMW performance header for BMW E46 M3 by BMW tuner, Active Autowerke\"\u003eperformance header\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ealready installed. One will experience a high smell of unburnt fuel. (due to the open exhaust w\/o any catalysts) and development of a RASPY like sound of which the BMW S54 engine i\u003cspan\u003es notorious for with the BMW Stock Section 1 when equipped. This raspy like sound is a matter of engine sound harmonics at a specific RPM range, a sort of resonance that is very loud and noticeable when the engine is revving at or above 4,000 rpm.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003eThis is the BMW section 1 - where the RASP like noise emits from.\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003e\u003cimg alt=\"BMW SECTION 1 for Rasp Elimination on BMW E46 M3\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/double_pipe_2_small.jpg?1693\" width=\"114\" height=\"76\"\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-posinset=\"0\" aria-setsize=\"0\"\u003eWith the Active Autowerke Exhaust SECTION 1 installed, the BMW performance gains are about the same as running the factory section 1. However, that's impressive considering the exhaust flow is also being filtered while running through a pair of 100 cell catalysts. The power and performance is still there.\u003cbr\u003e\u003cbr\u003eGone is the smell of unburnt fuel.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eA BIG advantage.\u003c\/strong\u003e\u003cbr\u003eGone is the RASP like sound.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAnother BIG advanatge.\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003ca href=\"http:\/\/images.activeautowerke.com\/Installation%20PDF%27s\/vehiclewaiver2.pdf\" title=\"Off road waiver\"\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eDesigned and recommended for Off Road Use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003ePair of 100 CELL Hi Flow metallic exhaust catalysts included\u003c\/li\u003e\n\u003cli\u003eNo unburnt fuel like smell\u003c\/li\u003e\n\u003cli\u003eNO RASP like sound\u003c\/li\u003e\n\u003cli\u003eBrushed Finish for that industrial appeal\u003c\/li\u003e\n\u003cli\u003eConstructed from 100% 304 stainless steel\u003c\/li\u003e\n\u003cli\u003eUtilizes factory mounting points for easy bolt-on install\u003c\/li\u003e\n\u003cli\u003eTwo year warranty with Free Tech support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41603790897237,"sku":"11-110","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-bmw-e46-m3-exhaust-section-1-with-100-cell-hi-flow-catalysts-by-bmw-tuner-1182409277.webp?v=1753910980"},{"product_id":"active-autowerke-e46-bmw-m3-prima-supercharger-kit","title":"Active Autowerke E46 BMW M3 Prima Supercharger Kit","description":"\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003ch1\u003ePRIMA: A LEADER AMONG EQUALS\u003c\/h1\u003e\n\u003cp\u003eIn collaboration with Frank Smith of TuningTechFS, the Active Autowerke PRIMA supercharger kit has gained a reputation as one of the finest and most affordable systems available for the E46 BMW M3. Capable of exceeding 500 WHP through Level 1 and Level 2 upgrades, PRIMA is a star performer.\u003c\/p\u003e\n\u003cp\u003eThis supercharger system was designed with no frills in mind instead focusing on the pure and basic fundamentals. PRIMA is a fully bolt-on non-intercooled system that is completely reversible and DOES NOT require any custom fabrication. For those who desire some extra horsepower, the PRIMA system is fully upgradable via Level 1 and Level 2 options. With an outstanding design synonymous with the Active Autowerke brand, we have made our finest forced-induction kit even more affordable; all while maintaining the inherent driver-centric qualities of the BMW M3.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRIMA SUPERCHARGER KIT KEY FEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRotrex C38-92 Supercharger System\u003c\/li\u003e\n\u003cli\u003eActive Autowerke GEN 9 Intake Manifold plenum\u003c\/li\u003e\n\u003cli\u003eActive Autowerke DOUBLE Blow-off Valve Set-up\u003c\/li\u003e\n\u003cli\u003eActive Autowerke Green Filter \u0026amp; Filter Cover\u003c\/li\u003e\n\u003cli\u003eAlpha N Software tune w\/\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/software\/products\/simon2-bmw-software-flashing-tool-by-active-autowerke\" title=\"SIMON 2 BMW tuning tool\"\u003eSIMON 2\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003einterface included\u003c\/li\u003e\n\u003cli\u003eHigh Capacity Fuel Injectors\u003c\/li\u003e\n\u003cli\u003eColder Heat Range Spark Plugs\u003c\/li\u003e\n\u003cli\u003eDedicated oil cooling system for maximum performance and reliability\u003c\/li\u003e\n\u003cli\u003eAll Hoses, Clamps, Etc. (pre-assembled)\u003c\/li\u003e\n\u003cli\u003eEasily Upgradable to Either Level 1 or 2 System\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBASE PRIMA SUPERCHARGER DYNOJET RESULTS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBoost:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e5.8 \u003c\/strong\u003e\u003c\/span\u003epsi\u003c\/p\u003e\n\u003cp\u003eStock Horsepower:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e285.4\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eWHP @ 7500 RPM\u003c\/p\u003e\n\u003cp\u003eStock Torque:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e232.36\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003eLB-FT @ 5250 RPM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSupercharged Horsepower:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e426.69 \u003c\/strong\u003eWHP @ 8150 RPM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSupercharged Torque:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e297.99\u003c\/strong\u003e LB-FT @ 7200 RPM\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ciframe width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/I9aLieDoE2Q\" title=\"Loz's M3 QR-2\"\u003e\u003c\/iframe\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHY THE PRIMA SUPERCHARGER KIT FOR YOUR E46 BMW M3?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSince BMW ceased production of the E46 BMW M3 in June 2006, it has become one of the most coveted models to enhance with various performance modifications. One of the more popular upgrades to date has been the addition of a supercharger system like PRIMA, capable of creating over 600 horsepower to the rear wheels.\u003c\/p\u003e\n\u003cp\u003eAs newer iterations of the M3 are introduced, past generations like the E46 invite a whole new community of BMW owners seeking performance modifications relative to the car's value. This translates to reduced expense on Active Autowerke supercharger components, making it the perfect time for an entry level supercharger system.\u003c\/p\u003e\n\u003cp\u003eSimply put, not much compares to a PRIMA-supercharged E46 M3 when it comes to bang for your performance-vehicle buck.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCAN I RUN PRIMA WITHOUT AN INTERCOOLER?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYES! In the past, running this kit without an intercooler would have been considered suicidal due to the extremely high 11.5:1 compression of the S54 engine. Thankfully, through years of product development, testing, and tuning of supercharger applications with this motor, PRIMA kit and associated software have undergone changes to successfully and safely marry the S54's stock motor with the rigors of a boosted application.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHY USE ACTIVE AUTOWERKE?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuarantee\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eActive Autowerke guarantees the quality of our BMW performance products; some of which surpass the performance industry standard. Combining a quality product with exceptional customer service are two of the core values we practice every day.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLongevity\u003c\/strong\u003eOur 30+ years of experience working and wrenching on BMWs is a true testament to what Active Autowerke is all about. With thousands of superchargers already sold, and many used or pre-owned kits already transferred to new cars and owners; consumers are ensured piece of mind knowing they can trust a company that continues to support systems that are 10+ years old.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eE46 BMW M3 PRIMA DYNO RESULTS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003ca href=\"http:\/\/www.activeautowerke.com\/dyno\/3-Series\/E46\/M3\/#Prima%20Kit%20Supercharger\"\u003e\u003cimg alt=\"\" src=\"http:\/\/images.activeautowerke.com\/dyno\/3-Series\/E46\/M3\/products\/Prima%20Kit%20Supercharger\/images\/Prima%20Vs%20stk.bmp\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003ePlease Note All Supercharger Kits May Take Up To 6 Weeks To Ship due to Blower availability. Please Call To Confirm Status.\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"SMG","offer_id":41603832479829,"sku":"AASC-E46M3-PRIMA-SMG-GEN9","price":9375.0,"currency_code":"USD","in_stock":true},{"title":"6-Speed","offer_id":41603832512597,"sku":"AASC-E46M3-PRIMA-6SPD-GEN9","price":9375.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerkes-active-autowerke-e46-bmw-m3-prima-supercharger-kit-1182409252.webp?v=1753910733"},{"product_id":"active-autowerke-bmw-135i-335i-1m-e82-e9x-bov-kit-with-charge-pipe-n54-by-bmw-tuner","title":"Active Autowerke BMW 135i 335i 1M E82 E9X BOV Kit with Charge Pipe N54 by BMW Tuner","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cp\u003e\u003cstrong\u003eBMW Performance BOV Kit For BMW 135i, 335i With N54 Motor.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur single BMW BOV Kit and chargepipe sports a huge venturi, designed to handle excess pressure build-up against the turbo compressor impeller blades, pressure at the impeller to stop spinning (a.k.a. Compressor Surge),which can damage the compressor wheel and shaft. With our BMW 135i 335i Performance BOV in place, the stock turbos are protected as the boost is raised u00a0you can take HP to the stratosphere, enjoy the spoils of all that performance, and get that cool whoosh sound as your machine spits out excess inlet pressure.\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eAll hardware \u0026amp; fittings have that quality factory look you demand, and are built to perform flawlessly under the most aggressive boost conditions. Combine with our effective\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/aatuning.com\/products\/active-autowerke-n54-performance-software-for-135-335-335is-535-2007-2011\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" target=\"_blank\"\u003eBMW Software\u003cspan\u003e \u003c\/span\u003e\u003c\/a\u003efor the ultimate performance tandem. Designed, and made by BMW tuner, Active Autowerke to help you\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\"...Come Play with POWER...\"\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eWARNING - when flashing your ECU, it is important that you connect a battery charger to your car in order to provide a stable voltage source regardless of your battery condition and you must remove any sleep options on your laptop.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable border=\"0\" aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" id=\"ctl00_ContentPlaceHolder1_TableFeatures\" class=\"helve12-blanco\"\u003e\n\u003ctbody aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" id=\"ctl00_ContentPlaceHolder1_Titulo\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" id=\"ctl00_ContentPlaceHolder1_TableCell2\"\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cb aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003c\/b\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eHigh-efficiency single displacement BOV takes place of two smaller plastic valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eLarge opening can handle maximum boost, provide high flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eProven and tested to handle 600+ HP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eAll aluminum venturi design with factory-style throttle clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eCNC machined flange\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eDurable black powder-coated wrinkle finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\n\u003ctd aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eIllustrated instruction manual \u0026amp; installation guide for easy Plug N Play\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cbr\u003e\u003c\/h2\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41605355503701,"sku":"AA-BOVKIT-N54","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-135i-335i-1m-e82-e9x-bov-kit-with-charge-pipe-n54-by-bmw-tuner-1183882127.webp?v=1754791291"},{"product_id":"active-autowerke-bmw-exhaust-stubbies-for-e9x-m3","title":"Active Autowerke BMW Exhaust Stubbies for E9X M3","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv\u003eYou already own the Active Autowerke Signature Series X pipe for your BMW E9x M3 to achieve the maximum in performance and power, but were limited only to the race track since it replaces the BMW factory exhaust catalysts and was not intended for the highways.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eActive Autowerke Stubbies\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis designed primarily as a cost effective means of utilizing your existing BMW Factory catalysts into something usable.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eIf this can be done, then there is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e...No need to purchase as set of catalysts to be OBD11 readiness compliant...\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003eThe Active Autowerke Stubbies with your BMW catalysts will do the task of meeting OBD11 readiness requirements when installed with the Active Autowerke X-PIPE. Of course, the feature of the added performance is still maintained.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003eYou will find that the front section of the Active Signature X pipe is totally removable by the use of V-Band clamps. Simply remove this front section and replace with the BMW primary catalysts that are converted with the Active Stubbies.\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv\u003eWhat the Active Autowerke Stubbies have accomplished is to transform you existing BMW primary exhaust catalysts into a smaller, more compact unit that has added features. Just by cutting with a sawzall and welding by someone competent, you will have a re-sized BMW factory catalyst in a much smaller package. Now you can run the Active Signature X pipe on the street or the race circuit and all it takes is switching your front pipe sections to suit your surface conditions. This can be done repeatedly in multiple re-installs since there are no gaskets to replace.\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/stubby-1_medium.jpg?1183\" alt=\"\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eFactory Cats with Stubbies Installed (Factory Cats Not Included With Stubbies)\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003eAs a added BONUS. Your original catalysts can now be stored easily in a smaller, more modular package.\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eMeet OB11 readiness compliance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eVery cost effective. $295.00 for the SET (sold as a PAIR)\u003c\/li\u003e\n\u003cli\u003eSmall and compact package\u003c\/li\u003e\n\u003cli\u003eMultiple re-installs w\/o the need for additional gasket\u003c\/li\u003e\n\u003cli\u003eModular for both Track and Street application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41605365530709,"sku":"11-020","price":332.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-exhaust-stubbies-for-e9x-m3-1183882120.webp?v=1754791170"},{"product_id":"active-autowerke-bmw-e36-m3-supercharger-kit-level-2-rotrex-c38-blower","title":"Active Autowerke BMW E36 M3 Supercharger Kit Level 2 (Rotrex C38 Blower)","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003eActive Autowerke BMW M3 Supercharger Kit Rotrex Blower Level 2\u003c\/strong\u003e\u003c\/p\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eNo one buys a BMW M3 because they like limits. Here at Active Autowerke, we know that well.\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eThis carefully engineered BMW M3 Supercharger kit matches the Rotrex C38 supercharger with the perfect hardware, software and tuning to take the factory 240 HP straight up to over 400 HP - 350 HP at the wheels (with the potential for even more power with our ultimate Level 3 kit).\u003c\/span\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eThe level 2 version of this BMW M3 Supercharger system brings you car to another level, boasting a large front mount air to air intercooler and comes complete with all piping and hardware required to make this bolt on application work. This upgrade increases your car HP an additional 25-50HP over the stage 1 system. The stage 2 upgrade also includes an new high performance fuel pump to help deliver the necessary fuel. With the reliability and performance of an intercooled system along with our perfectly tuned software this system is a must for the true enthusiast looking to bring their M3 to new heights.\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eKey Features\u003c\/span\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eRotrex C38-81 Supercharger\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Front Mount Air to Air Intercooler\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eUpgraded High Flow Fuel Pump\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eMounting bracket, pulleys and belt\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e6 larger high-flow fuel injectors\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Air Filter\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Dyno-Tuned Software\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eAll mounting hardware, plumbing, hoses and clamps\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eIllustrated instruction manual \u0026amp; installation guide\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1 Year Warranty with free tech support\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003ePlease Note All Supercharge Kits May take 4-6 weeks to build. Please Call To Confirm.\u003c\/h2\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"332192095\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=332192095\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain role=\"main\" class=\"content product-page\" id=\"content\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eNo one buys a BMW M3 because they like limits. Here at Active Autowerke, we know that well.\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eThis carefully engineered BMW M3 Supercharger kit matches the Rotrex C38 supercharger with the perfect hardware, software and tuning to take the factory 240 HP straight up to over 400 HP - 350 HP at the wheels (with the potential for even more power with our ultimate Level 3 kit).\u003c\/span\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eThe level 2 version of this BMW M3 Supercharger system brings you car to another level, boasting a large front mount air to air intercooler and comes complete with all piping and hardware required to make this bolt on application work. This upgrade increases your car HP an additional 25-50HP over the stage 1 system. The stage 2 upgrade also includes an new high performance fuel pump to help deliver the necessary fuel. With the reliability and performance of an intercooled system along with our perfectly tuned software this system is a must for the true enthusiast looking to bring their M3 to new heights.\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003cspan class=\"font2\" aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cspan aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eKey Features\u003c\/span\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eRotrex C38-81 Supercharger\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Front Mount Air to Air Intercooler\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eUpgraded High Flow Fuel Pump\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eMounting bracket, pulleys and belt\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e6 larger high-flow fuel injectors\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Air Filter\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eActive Autowerke Dyno-Tuned Software\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eAll mounting hardware, plumbing, hoses and clamps\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003eIllustrated instruction manual \u0026amp; installation guide\u003cbr aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1 Year Warranty with free tech support\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 aria-posinset=\"0\" aria-setsize=\"0\" aria-level=\"0\"\u003ePlease Note All Supercharge Kits May take 4-6 weeks to build. Please Call To Confirm.\u003c\/h2\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"332192095\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=332192095\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer\"\u003e\n\u003csection class=\"clearfix loaded ignore\" data-multi=\"true\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-section-type=\"footer\" data-section-id=\"footer\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" class=\"font2\"\u003eNo one buys a BMW M3 because they like limits. Here at Active Autowerke, we know that well.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThis carefully engineered BMW M3 Supercharger kit matches the Rotrex C38 supercharger with the perfect hardware, software and tuning to take the factory 240 HP straight up to over 400 HP - 350 HP at the wheels (with the potential for even more power with our ultimate Level 3 kit).\u003c\/span\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" class=\"font2\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eThe level 2 version of this BMW M3 Supercharger system brings you car to another level, boasting a large front mount air to air intercooler and comes complete with all piping and hardware required to make this bolt on application work. This upgrade increases your car HP an additional 25-50HP over the stage 1 system. The stage 2 upgrade also includes an new high performance fuel pump to help deliver the necessary fuel. With the reliability and performance of an intercooled system along with our perfectly tuned software this system is a must for the true enthusiast looking to bring their M3 to new heights.\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003c\/span\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\" class=\"font2\"\u003e\u003cspan aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eKey Features\u003c\/span\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eRotrex C38-81 Supercharger\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eActive Autowerke Front Mount Air to Air Intercooler\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eUpgraded High Flow Fuel Pump\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eMounting bracket, pulleys and belt\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e6 larger high-flow fuel injectors\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eActive Autowerke Air Filter\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eActive Autowerke Dyno-Tuned Software\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eAll mounting hardware, plumbing, hoses and clamps\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003eIllustrated instruction manual \u0026amp; installation guide\u003cbr aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e1 Year Warranty with free tech support\u003c\/span\u003e\u003c\/p\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003ePlease Note All Supercharge Kits May take 4-6 weeks to build. Please Call To Confirm.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41605369135189,"sku":"12-004","price":11599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-e36-m3-supercharger-kit-level-2-rotrex-c38-blower-1183882115.webp?v=1754791063"},{"product_id":"active-autowerke-bmw-328i-supercharger-kit-level-2-complete-e36","title":"Active Autowerke BMW 328i Supercharger Kit Level 2 Complete E36","description":"\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv class=\"cbb-frequently-bought-container cbb-desktop-view\"\u003e\n\u003cmain id=\"content\" class=\"content product-page\" role=\"main\"\u003e\u003cwlm class=\"wlm-content\"\u003e\u003cdiv id=\"shopify-section-template--18177512702232__description\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__description\" data-section-type=\"tabbed\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.tabbed.js?v=83467205078527531921678406186\" data-carousel-type=\"section\" class=\"container clearfix loaded ignore\"\u003e\u003cdiv class=\"nine center text-left bottompad clearfix\"\u003e\u003cdiv id=\"description\" class=\"product-desc tab-body tab-body-content tab-body-id-template--18177512702232__description\" role=\"tabpanel\" tabindex=\"0\" aria-labelledby=\"tab-description\"\u003e\u003cdiv class=\"tabindex\"\u003e\n\u003cp\u003eThe Active Autowerke N52 Performance Exhaust Header is specifically designed for BMW chassis which utilize the N52 inline 6-cylinder engine. With our performance header for the N52, you will be able to increase the exhaust flow of your BMW while gaining additional power u2013 something that is difficult to accomplish on these vehicles.\u003c\/p\u003e\n\u003cp\u003eThis header was engineered to promote optimum flow and eliminate any restrictions that could possibly rob the engine of extra horsepower. Available for a number of BMW applications, the Active Autowerke N52 Performance Exhaust Header should be one of the first upgrades owners elect to make. Not to mention, the tremendous effects can be felt almost immediately.\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDyno-Proven 20+ WHP gains over stock manifold\u003c\/li\u003e\n\u003cli\u003eImproved power \u0026amp; torque curves throughout entire RPM range\u003c\/li\u003e\n\u003cli\u003eAvailable for Coupe, Convertible, \u0026amp; Sedan\u003c\/li\u003e\n\u003cli\u003eDesigned for RACE and\/or TRACK USE\u003c\/li\u003e\n\u003cli\u003e100% 304 Brushed Stainless Steel finish\u003c\/li\u003e\n\u003cli\u003eMandrel-bent tubing for a smooth \u0026amp; unrestricted flow\u003c\/li\u003e\n\u003cli\u003eEach header test fitted on N52 Header jig\u003c\/li\u003e\n\u003cli\u003eGuaranteed to fit on BMW E9X 328i w\/N52 engine\u003c\/li\u003e\n\u003cli\u003eIncludes all gaskets needed for installation ( $150 SAVINGS )\u003c\/li\u003e\n\u003cli\u003eTwo-year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eN52 EXHAUST HEADER APPLICATIONS:\u003c\/h3\u003e\n\u003ch3\u003eE82:\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e128i Coupe or Convertible\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eE9X:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e325i\/325xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e328i\/328xi Sedan, Coupe, or Convertible\u003c\/li\u003e\n\u003cli\u003e330i\/330xi Sedan, Couple, or Convertible\u003c\/li\u003e\n\u003cli\u003eWILL NOT FIT RHD CARS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke N52 Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 Stage intake manifold (charcoal air filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eK\u0026amp;N Drop-in filteru00a0\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/p\u003e- Header system designed for off-road use and racing application only\u003cbr\u003e- Will generate **CEL** without\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"http:\/\/store.activeautowerke.com\/collections\/e9x-328\/products\/active-autowerke-bmw-e9x-328i-bmw-128i-n51-n52-performance-tune-software\" title=\"Active Autowerke N52 Software Tune Upgrade\" target=\"_blank\"\u003eActive Autowerke N52 software upgrade\u003c\/a\u003e\u003ch2\u003e\u003c\/h2\u003e\n\u003ch2\u003eMustang Dyno Results - BMW 328i Auto:\u003c\/h2\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0578\/5357\/files\/Dyno-N52Headers.jpg?1673\"\u003e\u003cbr\u003e\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp\u003eu00a0\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMODIFICATIONS:\u003c\/strong\u003eu00a0\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eActive Autowerke Performance Exhaust Header\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock intake manifold (charcoal filter removed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOEM paper air intake filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStock exhaust (with secondary catalytic converters intact)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRESULTS:u00a0\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBottom line - stock 328i Automatic: u00a0\u003cem\u003e175 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e161 WTQ\u003c\/em\u003e\u003cbr\u003eMiddle line - AA Header \u0026amp; charcoal filter delete: u00a0\u003cem\u003e198 WHP\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cem\u003e179 WTQ\u003c\/em\u003e\u003cbr\u003eTop line - AA header, AA software, \u0026amp; charcoal filter delete: u00a0\u003cem\u003e\u003cstrong\u003e207 WHP\u003c\/strong\u003e\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003e|\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cstrong\u003e192 WTQ\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eu00a0u00a0\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cb\u003eCreated With Performance In Mind\u003c\/b\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAs is the goal with building any header, the purpose of designing the N52 Performance Header was increase horsepower and improve overall performance. Our header does a tremendous job of freeing up untapped horsepower that the BMW N52 is capable of producing. After many dyno runs and recorded results, the data validates the Active Autowerke N52 Performance Header as must-have BMW performance part for a noticeable and powerful upgrade.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eMaterial \u0026amp; Durability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for either naturally aspirated or supercharged applications, the N52 Header by Active Autowerke is made entirely of 100% 304 stainless steel. With this header, worrying about durability is a thing of the past.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eIs installing the header difficult to do? Not at all! Robust exhaust flanges with recessed mounting holes make the installation of your N52 Performance Header a breeze. With a few quick turns of a ratchet, you will be well on your way to feeling the additional horsepower.\u003c\/p\u003e\n\u003cstrong\u003e\u003cem\u003eNOTE:u00a0Active Autowerke GUARANTEES that each and every N52 Performance Header will be a precise fit. Every Active Autowerke N52 Header is test-fitted on our N52 motor jig as part of our quality control.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003eHardware:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAs far as mounting hardware is concerned, this system is absolutely complete. The BMW N52 engine uses a single-use oval shape gasket to help seal the exhaust manifold against the exhaust port u2013 a floating design that also self-centers the exhaust flange as it is being torqued. Reuse of this gasket is NOT SUGGESTED which is why we provide you with SIX new gaskets as part of the installation hardware.\u003c\/p\u003e\n\u003cp aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003eAlso included are two fiber gaskets for where the header meets the remaining sections of the exhaust system. Copper locking nuts for the header to mount against the cylinder head and mounting bolts w\/nuts to secure the header to the exhaust system are included as well.u00a0\u003c\/p\u003e\n\u003cem\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e\u003c\/em\u003eu00a0\u003cstrong\u003e\u003cem\u003eThe factory exhaust catalysts MUST be removed in the process, making this solution recommended for off-road and racing applications ONLY.\u003c\/em\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv aria-setsize=\"0\" aria-posinset=\"0\" aria-level=\"0\"\u003e\u003cstrong\u003e\u003cem\u003eThere will be a CEL without Active Autowerke software upgrade\u003c\/em\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__apps\" class=\"shopify-section\"\u003e\u003csection data-section-id=\"template--18177512702232__apps\" class=\"container clearfix loaded\"\u003e\u003cdiv class=\"twelve bottompad\"\u003e\u003c\/div\u003e\u003c\/section\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__related\" class=\"shopify-section\"\u003e\u003cdiv class=\"clearfix\"\u003e\u003cdiv id=\"related\" class=\"container clearfix\"\u003e\u003csection data-section-id=\"template--18177512702232__related\" data-product-id=\"406574543\" data-id=\"related\" data-address=\"\/recommendations\/products?section_id=template--18177512702232__related\u0026amp;product_id=406574543\u0026amp;limit=4\u0026amp;intent=complementary\" data-section-type=\"product_recommendations\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.product.recommendations.js?v=102393478811733886461678406186\" data-carousel-type=\"section\" class=\"twelve product-recommendations relative loaded ignore\"\u003e\u003c\/section\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-template--18177512702232__pagination\" class=\"shopify-section\"\u003e\u003c\/div\u003e\u003c\/wlm\u003e\u003c\/main\u003e\n\u003cdiv id=\"shopify-section-footer-brands\" class=\"shopify-section\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"shopify-section-footer\" class=\"shopify-section\"\u003e\n\u003csection data-section-id=\"footer\" data-section-type=\"footer\" data-url=\"\/\/store.activeautowerke.com\/cdn\/shop\/t\/23\/assets\/script.footer.js?v=99714854018320942351678406186\" data-multi=\"true\" class=\"clearfix loaded ignore\"\u003e\n\u003cdiv\u003e\u003cstrong\u003eActive Autowerke BMW 328i Supercharger Kit Level 2\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eLooking to increase your BMW 328i performance by over 150%? Look no further, the Active Autowerke BMW 328i Supercharger system level 2 for your 328i will do just that.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eNow they have it and the amazing 150% power kick that comes along for the ride. This carefully engineered BMW 328i Supercharger kit matches the Rotrex C38 supercharger with the perfect hardware, software and tuning to take the factory 190 HP straight up to 360+ HP (with the potential for even more power with additional upgrades, like our BMW 328i Performance Exhaust).\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eActive Autowerke BMW 328i Supercharger Kit Level 2 Benefits\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe level 2 version of this BMW 328i Supercharger system brings you car to another level, boasting a large front mount air to air intercooler and comes complete with all piping and hardware required to make this bolt on application work. This upgrade increases your car HP an additional 25-40HP over the stage 1 system. The stage 2 upgrade also includes an new high performance fuel pump to help deliver the necessary fuel. With the reliability and performance of an inter-cooled system along with our perfectly tuned software this system is a must for the true enthusiast looking to bring their 328i to new heights.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eRotrex C38-81 Supercharger\u003c\/div\u003e\n\u003cdiv\u003eActive Autowerke Front Mount Air to Air Intercooler\u003c\/div\u003e\n\u003cdiv\u003eUpgraded High Flow Fuel Pump\u003c\/div\u003e\n\u003cdiv\u003eMounting bracket, pulleys and belt\u003c\/div\u003e\n\u003cdiv\u003e6 larger high-flow fuel injectors\u003c\/div\u003e\n\u003cdiv\u003eActive Autowerke Air Filter\u003c\/div\u003e\n\u003cdiv\u003eActive Autowerke Dyno-Tuned Software\u003c\/div\u003e\n\u003cdiv\u003eAll mounting hardware, plumbing, hoses and clamps\u003c\/div\u003e\n\u003cdiv\u003eIllustrated instruction manual \u0026amp; installation guide\u003c\/div\u003e\n\u003cdiv\u003e1 Year Warranty with free tech support\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp aria-level=\"0\" aria-setsize=\"0\" aria-posinset=\"0\"\u003e\u003cstrong\u003ePlease Note All Supercharge Kits are built to order may take 4-6 weeks. Please Call To Confirm.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"shopify-section\" id=\"shopify-section-footer-brands\"\u003e\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/main\u003e","brand":"Active Autowerke","offers":[{"title":"Default Title","offer_id":41605369462869,"sku":"12-002","price":11599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/kies-motorsports-active-autowerke-active-autowerke-bmw-328i-supercharger-kit-level-2-complete-e36-1183882112.webp?v=1754791054"}],"url":"https:\/\/www.kiesmotorsports.com\/collections\/active-autowerkes.oembed?page=6","provider":"Kies Motorsports","version":"1.0","type":"link"}