$595.00 USD
$595.00 USD
































































The BMW X5M and X6M deliver blistering performance straight from the factory—but “decent” sound isn’t enough for an SUV with this much power. At Valvetronic Designs, we’ve engineered the ultimate valved exhaust system to unlock the raw, motorsport-inspired tone that these platforms truly deserve.
Connecting to either stock or aftermarket free-flow downpipes, our system runs a full 3.0-inch diameter from inlet to outlet, flowing unrestricted all the way to the tips. A centrally mounted X-pipe merges exhaust pulses for a harmonized, high-energy tone as the revs climb.
Valves Closed: Cabin remains refined and drone-free—perfect for daily driving.
Valves Open: Aggressive pops, sharper cracks, and a motorsport edge that transforms the S63 or S68 soundtrack into something unforgettable.
Through our development testing, we found that an unresonated configuration produces the most raw and exciting character, with crisp gear-change snaps and a more engaging overall tone.
Material Options: Premium T304 stainless steel for strength & durability, or ultra-lightweight titanium for the sharpest tone and maximum weight savings.
OEM Valve Integration: Reuses the factory electronic valves for seamless control via drive modes.
Precision TIG Welding: Ensures both high strength and an exceptional finish.
Fully mandrel-bent tubing: Optimized for maximum exhaust flow.
Fits both S63 & S68 engines
3.0" free-flow design for maximum performance
Stainless steel weight savings: 9.8 lbs lighter than stock
Titanium weight savings: 39.4 lbs lighter than stock
OEM electronic valve compatibility
100% reversible – always able to return to stock
2020–2025 BMW X5M F95
2020–2025 BMW X6M F96
This is more than an exhaust—it’s the missing piece that lets your BMW X5M or X6M sound as bold and powerful as it drives.
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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.