CarbonXtreme BMW G80 M3 M4 G82 Carbon Fiber Rear Diffuser Trim OEM Style

The G80 M3 Rear Diffuser Trim by CarbonXtreme is the ideal upgrade for BMW enthusiasts looking to enhance the rear end of their G80 M3 or G82 M4. Designed in OEM Style, this carbon fiber rear diffuser trim offers both aggressive styling and functional benefits, adding a motorsport-inspired touch to your vehicle.

Crafted from premium carbon fiber, this diffuser trim is available in two material options:

• Dry Carbon Fiber (Aluminum Mold): This pre-preg carbon fiber is cured under high pressure and temperature, ensuring a strong, lightweight, and durable component. Dry carbon fiber is ideal for performance enthusiasts looking for high strength and precision. The installation requires no drilling, fitting seamlessly to your car’s OEM mounting points.

• Wet Carbon Fiber (Hand-Laid): A more affordable option, offering a similar visual appeal to dry carbon but with slightly less rigidity. Wet carbon is a great choice for cosmetic upgrades. It may require minor adjustments during installation due to slight deformations that can occur during shipping.

For more details on the differences between dry carbon and wet carbon, check out our full guide:
Dry Carbon vs. Wet Carbon – What’s the Difference?

The G80 M3 Rear Diffuser Trim features OEM-level fitment, ensuring it integrates seamlessly with your factory rear bumper. The installation process uses OEM mounting points and automotive-grade adhesive, ensuring a secure fit without the need for drilling. This installation method preserves the integrity of your vehicle’s original parts while offering a clean and easy upgrade.

Finished with a UV-resistant gloss clear coat, this rear diffuser trim is designed to withstand the elements, maintaining its vibrant carbon fiber finish over time. The gloss finish prevents yellowing, fading, and oxidation, ensuring your M3 continues to look sharp for years to come.

Whether you’re upgrading for aesthetics, aerodynamics, or both, the CarbonXtreme G80 M3 Rear Diffuser Trim is the perfect addition to your build.

Product Type: Rear Diffuser Trim
Fitment: BMW G80 M3, G82 M4
Style: OEM Style
Material Options: Dry Carbon Fiber / Wet Carbon Fiber
Surface Finish: Gloss UV-protected clear coat
Installation Method: OEM mounting points + adhesive (no drilling required)
Aerodynamic Function: Improved airflow, reduced rear-end lift
Fitment Precision: OEM-level precision, seamless integration
Use Case: Aesthetic upgrade, lightweight performance
Installer Recommendation: DIY-friendly or professional installation