$595.00 USD
$595.00 USD






























The BMW F12 M6’s S63 4.4L twin-turbo V8 delivers exceptional performance, but its factory exhaust doesn’t fully capture the car’s aggressive potential. The Valvetronic Designs Valved Exhaust System transforms the M6 into a dual-personality machine—capable of refined, luxury cruising or spine-tingling aggression at the touch of a button.
Building on the success of our F10 M5 and F06 M6 systems, this exhaust connects to OEM or aftermarket free-flow downpipes and is engineered for perfect fitment, improved flow, and a signature sound that defines the Valvetronic experience.
Vacuum-Operated Valves: Switch seamlessly between quiet, stock-like operation and a deep, aggressive tone.
High-Flow 3.0" Design: Reduces back pressure and improves scavenging for gains in horsepower, torque, and throttle response.
Material Options: Choose T304 stainless steel for durability or Grade 5 titanium for maximum weight savings and performance.
Valves Closed: Subtle and refined for comfortable city driving or highway cruising.
Valves Open: Bold, commanding tone with pronounced turbo spool and overrun character.
Controller Included: Plugs into the factory harness for reliable, factory-like operation.
Material: T304 stainless steel or Grade 5 titanium.
Weight Savings vs. OEM: –24.8 lb (Stainless) / –51.7 lb (Titanium).
Craftsmanship: Precision TIG welds, fully mandrel-bent tubing, and meticulous finishing.
Tips: Premium finishes available to complement the M6’s styling.
2012–2018 BMW F12 M6
Direct bolt-on to OEM or aftermarket downpipes.
100% reversible—return to stock at any time.
Valved cat-back exhaust system (Stainless or Titanium)
Vacuum-actuated valves and controller for OEM-style operation
All required clamps and hardware
Tubing Diameter: 3.0" from inlet to outlet
Materials: T304 stainless steel or Grade 5 titanium
Valves: Vacuum-actuated with controller included
Weight Savings: –24.8 lb (Stainless) / –51.7 lb (Titanium) vs. OEM
Finish: Brushed stainless or burnt titanium
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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.