CMST Carbon Fiber Rear Diffuser for BMW 3 Series G20 G21 M340i 330i 2019-2022

Elevate the aggressive stance and aerodynamic performance of your BMW 3 Series with the CMST Carbon Fiber Rear Diffuser. This precision-engineered component is designed to enhance the visual drama and functional downforce at the rear of your vehicle, providing a track-inspired aesthetic that complements its dynamic capabilities. Specifically crafted for the BMW 3 Series G20 & G21 platform, including the M340i and 330i models from 2019-2022 equipped with the factory Sport or M-Package, this diffuser integrates seamlessly with your car's existing lines for a perfect OEM+ upgrade.

Constructed from authentic, high-grade carbon fiber, this diffuser combines lightweight strength with stunning visual appeal. Each piece is meticulously laid up and finished with a durable UV-protection clearcoat to guard against fading and environmental damage, ensuring the signature weave retains its deep luster for years. The component includes an integrated LED brake light, adding a modern touch and increased visibility. Customers can select the classic 3K (2x2) gloss weave as standard, with forged carbon patterns and matte finishes available as premium options.

• Perfect Fitment: Designed exclusively for the BMW 3 Series G20 & G21 (Sedan & Touring) models, including the M340i and 330i, from 2019-2022 with the factory M-Package/Sport Package bumper.
• Premium Material: Manufactured from real carbon fiber for optimal strength-to-weight ratio and a luxurious finish.
• Superior Finish Options: Features a protective UV gloss clearcoat as standard. Upgrades to a forged carbon pattern or a matte finish are available.
• Complete Package: Includes the rear diffuser and an integrated LED third brake light for a comprehensive, plug-and-play installation.

All CMST carbon fiber parts are supplied and backed by AME Motorsport, guaranteeing premium quality, fitment, and customer support.