{"product_id":"apr-rear-catback-exhaust-system-sq5-b9","title":"APR Rear Catback Exhaust System - SQ5 (B9)","description":"\u003cp\u003eSelect your APR part number using the options above.\u003c\/p\u003e\u003ch2\u003eCBK0057 — APR Rear Catback Exhaust System - SQ5 (B9)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAPR Part Number: CBK0057\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFits Audi SQ5 18-25\u003c\/p\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003cdiv\u003eIntroducing the APR Rear Catback Exhaust System for the Audi B9 SQ5\n\nThe APR Rear Catback Exhaust System for your Audi B9 SQ5 introduces a deeper and more aggressive growl to your vehicle’s exhaust note. The system is a direct bolt on with your factory exhaust system or can be combined with the APR Midpipe Exhaust System for a more refined and more powerful full catback experience! Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance and elevate sound. Crafted from premium materials and built with advanced manufacturing techniques, this system is will withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with a gain of 5 AWHP and 6 AWFT-LBS or an impressive gain of 10 AWHP and 12 AWFT-LBS when combined with the APR Midpipe Exhaust System!\n\nUnmatched Design and Precision Engineering\n\nUnlike anything currently available, the APR system starts just after the midpipes but can be combined with our midpipe system to making this a true full-system upgrade. We’ve minimized restrictions with smooth transitions, oversized piping, and a straight-through rear muffler \/ Helmholtz resonators. Constructed from mandrel-bent T304 stainless steel with a brushed finish and TIG welding throughout, this exhaust system is as durable as it is striking. Installation is hassle-free, thanks to precision-fit brackets, OEM-style slip clamps, and an included upgraded tunnel brace to accommodate the oversized piping.\n\nInspired by RS Performance\n\nLike the RS4 and RS5, this system features a reengineered exhaust routing design. It utilizes a dual 2.75” (70mm) midpipes merging through a cast Y-junction into a massive 3.5” (91mm) midpipe, replacing the restrictive factory dual-pipe setup. The exhaust valve is fully integrated with the OEM control system, adjusting automatically to enhance sound during aggressive driving while maintaining a quieter profile during cruising. When closed, exhaust gasses route through the rear muffler featuring straight-through sound absorption technology and when open, bypasses the rear muffler all together.\n\nExperience the APR Difference\n\nDesigned for enthusiasts seeking the perfect balance of power, sound, and quality, the APR Midback Exhaust System for the Audi SQ5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.\u003c\/div\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-Play with APR Midpipe System or factory system.\u003c\/li\u003e\n\u003cli\u003ePerformance gains of 5 AWHP and 6 AWFT-LBS of torque on their own or 10 AWHP and 12 AWFT-LBS of torque when combined with the APR Midpipe System.\u003c\/li\u003e\n\u003cli\u003ePremium T304 stainless steel construction with TIG welding for strength and durability.\u003c\/li\u003e\n\u003cli\u003eOptimized flow through dual 2.75” midpipes to single 3.5” midpipe exiting through dual 3” downturns.\u003c\/li\u003e\n\u003cli\u003eMandrel-bent brushed piping paired with electropolished cast splitters for a refined finish.\u003c\/li\u003e\n\u003cli\u003ePrecision brackets and slip clamps ensure accurate alignment and hassle-free installation.\u003c\/li\u003e\n\u003cli\u003eIntegrated muffler minimizes drone and enhances sound quality.\u003c\/li\u003e\n\u003cli\u003eValve-controlled rear muffler dynamically adjust sound based on driving style.\u003c\/li\u003e\n\u003cli\u003eSmooth transitions and straight-through components maximize performance by reducing restrictions.\u003c\/li\u003e\n\u003cli\u003eStrikes the perfect balance of power, sound, style, and quality for enthusiasts.\u003c\/li\u003e\n\u003cli\u003eFully emissions compliant for worry-free operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrackets\u003c\/th\u003e\n\u003ctd\u003ePrecise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\t\u003ctd\u003e\n\t\tAPR\n\t\t\n\t\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\u003c\/th\u003e\n\u003ctd\u003eExhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClamping Type\u003c\/th\u003e\n\u003ctd\u003eSlip Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClamps Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExhaust Tip Quantity\u003c\/th\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eBrushed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGrade Type\u003c\/th\u003e\n\u003ctd\u003ePerformance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHangers Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMain Piping Diameter\u003c\/th\u003e\n\u003ctd\u003e2.75 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003e3.00 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003e3.50 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eT304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMuffler Finish\u003c\/th\u003e\n\u003ctd\u003eBrushed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMuffler Quantity\u003c\/th\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMuffler Type\u003c\/th\u003e\n\u003ctd\u003eSound Absorption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePipe Bend Type\u003c\/th\u003e\n\u003ctd\u003eMandrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePipe Material\u003c\/th\u003e\n\u003ctd\u003eT304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eExhausts (Catback Systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSub Category\u003c\/th\u003e\n\u003ctd\u003eExhaust and Tail Pipes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSystem Type\u003c\/th\u003e\n\u003ctd\u003eCatback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTail Pipe Outlet Outside Diameter\u003c\/th\u003e\n\u003ctd\u003e3 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Connection\u003c\/th\u003e\n\u003ctd\u003eButt Joint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Type\u003c\/th\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eCatback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWelding\u003c\/th\u003e\n\u003ctd\u003eTIG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e810009935551\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eCBK0057\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eTech Resources\u003c\/h2\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\t\u003ca href=\"https:\/\/documents.goapr.com\/1cdfdd2ee6f7fb3c8f924ec545bbbf8d1cf1355c.pdf\" title=\"Instructions - tl100188_sq5_catback_web.pdf\"\u003e\n\t\t\u003cdiv\u003eInstructions - tl100188_sq5_catback_web.pdf\u003c\/div\u003e\n\t\u003c\/a\u003e\n\u003c\/div\u003e\t\u003cdiv\u003e\n\t\t\u003cdiv\u003e\u003c\/div\u003e\n\t\t\u003cdiv\u003ePlease note: Fitment excludes vehicles equipped with S Sport Package \/ Air Suspension\u003c\/div\u003e\n\t\u003c\/div\u003e\u003ch2\u003eVehicle Applications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e2018–2025 Audi SQ5 (FY, MLB-EVO) — 3.0L; Excludes vehicles equipped with S Sport Package \/ Air Suspension, Cat-Back Dual System; United States\u003c\/li\u003e\n\u003cli\u003e2021–2025 Audi SQ5 Sportback — 3.0L; Excludes vehicles equipped with S Sport Package \/ Air Suspension, Cat-Back Dual System; United States\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment Requirements\u003c\/h3\u003e\u003cp\u003ePlease note: Fitment excludes vehicles equipped with S Sport Package \/ Air Suspension\u003c\/p\u003e\u003cp\u003eInstructions - tl100188_sq5_catback_web.pdf Please note: Fitment excludes vehicles equipped with S Sport Package \/ Air Suspension\u003c\/p\u003e\u003ch2\u003eVKAPRCBK57MPK9 — APR Full Catback Exhaust System - SQ5 (B9)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eAPR Part Number: VKAPRCBK57MPK9\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFits Audi SQ5 18-25\u003c\/p\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003cdiv\u003eIntroducing the APR Catback Exhaust System for the Audi SQ5\n\nThe APR Catback Exhaust System for the Audi SQ5 is a complete, high-performance exhaust solution that runs the entire length of the vehicle from the catalyst back. The system is sold in two sections: The front post-catalyst downpipes and midpipes, and the rear catback section. Inspired by the larger center-pipe design of the higher-output RS4 and RS5 models, this system is engineered to boost performance, and elevate sound that's sure to make a statement! Crafted from premium materials and built with advanced manufacturing techniques, this system is designed to withstand harsh conditions and deliver lasting performance. Expect a bold, aggressive growl at wide-open throttle, along with an impressive gain of 10 horsepower and 12 FT-LBS of torque to all four wheels with the full system!\n\nUnmatched Design and Precision Engineering\n\nThe APR Midpipe System includes downpipes and midpipes that travel post-catalyst in the engine bay to the underside of the vehicle, eliminating the factory resonators in the process. The APR Rear Catback System starts just after the midpipes but can be combined with our midpipe system to making this a true full-system upgrade. We've minimized restrictions with smooth transitions, oversized piping, and a straight-through muffler. Constructed from mandrel-bent T304 stainless steel with a brushed finish and TIG welding throughout, this exhaust system is as durable as it is striking. Installation is hassle-free, thanks to precision-fit brackets, OEM-style clip clamps, including adapter clamps making both systems compatible with either our systems, or the factory systems.\n\nInspired by RS Performance\n\nLike the RS4 and RS5, this system features a reengineered exhaust routing design. It utilizes dual 2.5\" (63.5mm) downpipes to dual 2.75\" (70mm) midpipes pipes merging through a cast Y-junction into a massive 3.5\" (91mm) midpipe, replacing the restrictive factory dual-pipe setup. The exhaust valve is fully integrated with the OEM control system, adjusting automatically to enhance sound during aggressive driving while maintaining a quieter profile during cruising. When closed, exhaust gasses route through the rear muffler featuring straight-through sound absorption technology and when open, bypasses the rear muffler all together. \n\nExperience the APR Difference\n\nDesigned for enthusiasts seeking the perfect balance of power, sound, style, and quality, the APR Catback Exhaust System for the Audi SQ5 is a testament to engineering excellence. With its performance-driven design and durable construction, this system not only transforms your driving experience but also ensures years of reliable performance.\u003c\/div\u003e\u003ch3\u003eFeatures:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-Play with APR and factory system.\u003c\/li\u003e\n\u003cli\u003ePerformance gains of 5 AWHP and 6 AWFT-LBS of torque on each system on their own or 10 AWHP and 12 AWFT-LBS of torque when combined.\u003c\/li\u003e\n\u003cli\u003ePremium T304 stainless steel construction with TIG welding for strength and durability.\u003c\/li\u003e\n\u003cli\u003eOptimized flow through dual 2.5” downpipes to 2.75” midpipes to single 3.5” midpipe exiting through dual 3” downturns.\u003c\/li\u003e\n\u003cli\u003eMandrel-bent brushed piping paired with electropolished cast splitters for a refined finish.\u003c\/li\u003e\n\u003cli\u003ePrecision brackets and slip clamps ensure accurate alignment and hassle-free installation.\u003c\/li\u003e\n\u003cli\u003eIntegrated muffler minimizes drone and enhances sound quality.\u003c\/li\u003e\n\u003cli\u003eValve-controlled rear muffler dynamically adjust sound based on driving style.\u003c\/li\u003e\n\u003cli\u003eSmooth transitions and straight-through components maximize performance by reducing restrictions.\u003c\/li\u003e\n\u003cli\u003eStrikes the perfect balance of power, sound, style, and quality for enthusiasts.\u003c\/li\u003e\n\u003cli\u003eFully emissions compliant for worry-free operation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBending\u003c\/th\u003e\n\u003ctd\u003eMandrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrackets\u003c\/th\u003e\n\u003ctd\u003ePrecise\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\t\u003ctd\u003e\n\t\tAPR\n\t\t\n\t\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClamp Style\u003c\/th\u003e\n\u003ctd\u003eSlip Clamp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClamps Included\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEmission Code\u003c\/th\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExit Tube Diameter\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eT304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMuffler Finish\u003c\/th\u003e\n\u003ctd\u003eBrushed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMuffler Style\u003c\/th\u003e\n\u003ctd\u003eSound Absorption\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eExhaust Catback System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003eIntake Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Connection\u003c\/th\u003e\n\u003ctd\u003eButt Joint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Diameter\u003c\/th\u003e\n\u003ctd\u003e2.5 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003e2.75 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003ctd\u003e3.5 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTube Finish\u003c\/th\u003e\n\u003ctd\u003eBrushed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValve Actuation\u003c\/th\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eValves\u003c\/th\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVersion\u003c\/th\u003e\n\u003ctd\u003eFull System: Midpipes \u0026amp; Catback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWelding\u003c\/th\u003e\n\u003ctd\u003eTIG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003ctd\u003eVKAPRCBK57MPK9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch2\u003eEmissions\u003c\/h2\u003e\u003cdiv\u003e\u003cspan\u003e5\u003c\/span\u003e\u003c\/div\u003e\u003cbr\u003eThis part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.\u003ch2\u003eTech Resources\u003c\/h2\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\t\u003ca href=\"https:\/\/documents.goapr.com\/tl100188_sq5_catback_web.pdf\" title=\"Instructions - Install Instructions (Catback)\"\u003e\n\t\t\u003cdiv\u003eInstructions - Install Instructions (Catback)\u003c\/div\u003e\n\t\u003c\/a\u003e\n\u003c\/div\u003e\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\t\u003ca href=\"https:\/\/documents.goapr.com\/tl100189_sq5_midpipes_web.pdf\" title=\"Instructions - Install Instructions (Midpipes)\"\u003e\n\t\t\u003cdiv\u003eInstructions - Install Instructions (Midpipes)\u003c\/div\u003e\n\t\u003c\/a\u003e\n\u003c\/div\u003e\t\u003cdiv\u003e\n\t\t\u003cdiv\u003e\u003c\/div\u003e\n\t\t\u003cdiv\u003ePlease note: Fitment excludes vehicles equipped with S Sport Package \/ Air Suspension\u003c\/div\u003e\n\t\u003c\/div\u003e\u003ch2\u003eVehicle Applications\u003c\/h2\u003e\u003cul\u003e\u003cli\u003e2018–2025 Audi SQ5 (FY, MLB-EVO) — 3.0L; Excludes vehicles equipped with S Sport Package \/ Air Suspension, Cat-Back Dual System; United States\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eFitment Requirements\u003c\/h3\u003e\u003cp\u003eInstructions - Install Instructions (Catback) Instructions - Install Instructions (Midpipes) Please note: Fitment excludes vehicles equipped with S Sport Package \/ Air Suspension\u003c\/p\u003e","brand":"APR","offers":[{"title":"Catback","offer_id":42081009172565,"sku":"CBK0057","price":1499.95,"currency_code":"USD","in_stock":true},{"title":"Full System: Midpipes \u0026 Catback","offer_id":42081009205333,"sku":"VKAPRCBK57MPK9","price":2083.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0074\/3702\/5395\/files\/cbk0057_001.avif?v=1768934776","url":"https:\/\/www.kiesmotorsports.com\/products\/apr-rear-catback-exhaust-system-sq5-b9","provider":"Kies Motorsports","version":"1.0","type":"link"}