$595.00 USD
$595.00 USD


Upgrade the rear profile of your BMW G80 G81 M3 or G82 G83 M4 with the TRE Pre-Preg Carbon Fiber Diffuser Outline Trim. Designed for enthusiasts seeking a subtle yet aggressive enhancement, this diffuser trim adds a distinctive, motorsport-inspired touch while maintaining durability and a lightweight structure.
Premium Pre-Preg Carbon Fiber Construction
Crafted from high-quality 2x2 twill weave pre-preg carbon fiber for superior strength, reduced weight, and long-lasting durability.
Precision OEM-Like Fitment
CAD-engineered to ensure a seamless and precise fit along the factory rear diffuser, enhancing the rear aesthetic with minimal effort.
Aggressive, Motorsport-Inspired Design
Adds a sharp, refined outline that accentuates the rear diffuser, complementing the vehicle's overall sporty appearance.
UV-Resistant Gloss Finish
Finished with a high-gloss, UV-resistant clear coat to prevent fading, yellowing, or discoloration over time, ensuring a lasting premium look.
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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.