$595.00 USD
$595.00 USD










Introducing our new Sports Series Resonated Mid Pipes for your twin turbo S58 engine! Fits 2020+ X3M and X4M.
Key Features:
Restrictions in the exhaust system robs horsepower and torque especially on turbocharged cars. Thus, removing as much exhaust flow restrictions will increase horsepower and torque. The factory resonators found in the factory midpipe is designed to muffle and quiet the exhaust flow however this causes a restriction to the exhaust flow. Our Sports Series Resonated Midpipes replaces the restrictive factory resonators with free flowing resonators. We designed our Sports Series Resonated Mid Pipes to have a quieter sound similar to factory. The ideal solution for those who do not want a louder exhaust note than factory or have aftermarket downpipes/exhaust systems that are too loud while still providing a performance upgrade. Coupled with mandrel bent tubing which also helps promote better flow, increase horsepower and torque can be had.
Our Sports Series Resonated Mid Pipes feature a "H" style crossover. The crossover is used to equalize the pressure between the left and right exhaust pipes. This helps promote better flow and reduce droning. Through testing between an "X" and "H" crossover design, we found the "H" crossover design helped reduce droning and improving low end torque compared to the "X" crossover design. Thus, we incorporated an "H" crossover instead of a "X" crossover. At the end of the day, this is a BMW and we do not want droning. The factory mid pipe also incorporates a "H" crossover design so we figured BMW also felt the "H" design was the ideal solution for this application.
Our Sports Series Resonated Mid Pipes are constructed out of 100% 304 grade stainless steel and utilize mandrel bent piping. They are 100% TIG welded by our in-house fabricators and built in the USA. Our exhaust flanges are billet stainless steel that is computer CNC precision cut. The factory bracket hanger is retained. The bracket hanger is laser cut and TIG welded using stainless steel rods. High quality exhaust clamps are used to joint the mid pipes to the rear exhaust muffler section.
Our Sports Series Resonated Mid Pipes are designed to fit perfectly with either the factory exhaust system or your aftermarket exhaust system designed for compatibility to the factory mid pipes.
CAUTION: This product is intended for OFF ROAD COMPETITION USE ONLY. Not legal for use on pollution controlled vehicles upon public road/highways. THIS PRODUCT IS FOR SALE FOR ALL 49 STATES EXCLUDING CALIFORNIA. In addition to vehicle use verification, a Vehicle Compliance Waiver needs to be signed.
THIS ITEM IS NOT FOR SALE, INSTALLATION, OR USE ON LICENSED VEHILES IN THE STATE OF CALIFORNIA.
The item is for sale for international customers without restriction.
Please contact us at contact@evolutionracewerks.com or call us at (626) 334-6609
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$595.00 USD
$595.00 USD
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell, install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB), it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local regulations before purchasing or installing emissions-related products.
All performance, racing, or competition parts sold by this company are intended solely for off-road, closed-course, or competition use on vehicles that are never registered or used on public highways.
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the use of emission-control defeat devices or any modification that violates the Clean Air Act or state regulations.