$595.00 USD
$595.00 USD


























































































At Valvetronic Designs, we believe the G42 deserves a soundtrack as thrilling as its performance. This exhaust system is the result of extensive development and engineering—taking lessons from our most acclaimed platforms and applying them to BMW’s latest coupe. The goal: deliver the most raw, unfiltered sound possible when you want it, and quiet refinement when you don’t.
Valves Open: Pure performance character—tons of turbo spool, aggressive overrun, and an unrestrained tone that sings from idle to redline.
Valves Closed: Refined and docile, perfect for early morning starts or long highway drives.
Dynamic Range: Over 25 dB difference between open and closed modes for unmatched versatility.
Max Flow Design: A massive 3.5-inch midpipe transitions into dual mandrel-bent piping for optimal performance and sound quality.
Precision Construction: TIG-welded from premium T304 stainless steel for strength, corrosion resistance, and a flawless finish. Also available in Grade 5 titanium
Weight Savings: 20.9 lbs lighter than the factory exhaust.
Dual Pneumatic Valves: Proven for exceptional longevity and rapid actuation.
Reversible Installation: Always able to return to stock configuration.
2022+ BMW G42 240i
3.5-inch midpipe for maximum flow
Dual pneumatic-actuated valves
Fully mandrel-bent for unrestricted performance
Precision TIG welds for durability
Choice of premium exhaust tip finishes
100% reversible
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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.