M3 G80 Rear Diffuser

BMW M3 G80/G81/M4 G82 Carbon Fiber Rear Diffuser

Forceline carbon fiber rear diffuser for BMW M3 G80. Custom European engineering for optimal downforce and aerodynamic performance.

Take the rear-end styling of your BMW M3 or M4 to the next level with our premium Carbon Fiber Rear Diffuser. Designed for the G80, G81, and G82 platforms, this diffuser enhances your car’s dynamic look and improves airflow management — a perfect blend of style and performance.

Expertly crafted from 2×2 Twill 3K SPREAD Carbon Fiber, this diffuser features integrated fins and contours that flow perfectly with the factory rear bumper. The Triple UV-Protective Clear Coat provides a deep, glossy finish while protecting the carbon fiber from fading and environmental damage.

Engineered for OEM-level fitment, this diffuser is the ideal addition for enthusiasts looking to complete their carbon fiber package or upgrade their M3/M4’s rear-end with a motorsport-inspired design.

Designed as a direct replacement for the factory rear diffuser. May require bumper removal for installation. Mounts using factory points and included hardware. Professional installation is recommended to ensure proper fitment and secure attachment.

  • Compatible with BMW M3 G80/G81 and M4 G82 (2021+)

  • 2×2 Twill 3K Spread Carbon Fiber construction

  • Integrated aerodynamic fins for a track-inspired look

  • Lightweight, strong, and epoxy bonded

  • UV-protected high-gloss clear coat finish

  • Precision fitment with factory bumper integration

  • Designed and quality-inspected by Forceline

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