$595.00 USD
$595.00 USD


















The Performante Rear Diffuser is the definitive rear aero upgrade for the G87 M2 — a tri-fin design that mounts directly to the factory lower bumper location and transforms the rear end's visual presence while contributing genuine downforce under speed. Engineered using 100% genuine 3K 2x2 twill pre-preg carbon fiber with AutoTecknic's autoclave vacuum forming process for a structure that is lighter, stiffer, and cleaner than any wet-lay equivalent.
The high-gloss UV-resistant clear coat is applied in multiple layers for long-term durability and a finish that remains consistent after seasons of outdoor exposure. Durable mounting clips ensure a secure, rattle-free installation. For best results, remove the rear bumper before installing to properly seat the mounting clips.
Key Features
Note: Removing the rear bumper before installation is recommended for proper mounting clip access.
Fitment
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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.