$595.00 USD
$595.00 USD
















Refine the rear-end presence of your BMW F33 4-Series or F83 M4 Convertible with the AutoTecknic Carbon Performante Trunk Spoiler. Designed for those who value both form and function, this spoiler is constructed using 100% autoclave-formed carbon fiber for exceptional strength, lightweight performance, and precise fitment. The unique dual-fin profile adds aerodynamic purpose while giving your convertible an unmistakably aggressive look that enhances the factory silhouette.
Finished in a deep gloss clear coat, the carbon weave is sharp and consistent—built to withstand the elements while delivering a high-end motorsport aesthetic. Installation is a breeze with no drilling required—simply clean the trunk surface, apply high-bond automotive-grade tape, and press into place. Each spoiler goes through rigorous quality control before shipping, ensuring that it meets AutoTecknic’s exacting standards.
Whether you’re cruising top-down or parked at a meet, the Carbon Performante Spoiler brings a distinctive edge to your convertible that sets it apart.
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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.