$595.00 USD
$595.00 USD










Welcome to Version 2 of the Valvetronic Designs E9x M3 exhaust system. Version 2 brings on new improvements that push us past the competition. First is a return to Vacuum valves. These valves have proven to be far more reliable than electronic ones. We have also improved the sound quality to give a more pure driving experience to make this system the best on the market for the E9x platform. These systems are fully mandrel bent for maximum flow and are constructed out of T304 stainless steel, the highest quality material on the market. Our dream is to offer the BMW community an incredible valved exhaust without charging the dreaded "M tax" and that dream has come true. For far too long these systems have been out of reach for most people, but no longer. This system comes with everything you need to have your E9x M3 sound like a beast on your favorite backroad, or cruise to the shops without alerting the authorities. Your time to take control of your E9X M3 sound is now.
You now have the option to pair your Valved rear section with the best sounding mid pipe all in one place.
This midpipe is quite different than most, featuring a freeflow x merge right after the transmission tunnel. This design helps allow for maximum exhaust scavenging and power gains throughout the rev range. At the rear of the midpipe we have two 12-inch resonators to smooth the exhaust sound and provide noise mitigation. We also offer a catted version of the X-pipe for those who do not want to go fully free flow. This X pipe is designed for those who want maximum sound and maximum Horsepower gains, it is not for the weak of heart.
For those who choose the catted version, you are in for a treat. A 200 CELL EURO 6 cat configuration is used for ultimate quality and flow.
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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.