Skip to product information
1 of 4

M Spec

Carbon Fiber Rear Diffuser - BMW M3/M4 G8X

Carbon Fiber Rear Diffuser - BMW M3/M4 G8X

Regular price $729.99 USD
Regular price $899.99 USD Sale price $729.99 USD
Sale Sold out

Carbon Fiber Rear Diffuser – BMW M3/M4 G8X (G80, G82, G83)
Crafted from ultra-lightweight dry carbon fiber

Transform the rear end of your BMW G8X with our Carbon Fiber Rear Diffuser, built for aggressive styling and track-ready performance. Precision-engineered to enhance both looks and airflow, this diffuser is made from dry carbon fiber for maximum strength, minimal weight, and a premium motorsport finish.


Key Features:

  • 💎 Dry Carbon Fiber Construction
    Manufactured using pre-preg, autoclave-cured dry carbon fiber for a flawless finish, high rigidity, and ultra-lightweight performance.

  • 🏁 Aggressive Aero Design
    Deep fins and sharp lines channel airflow and enhance the rear stance of your M3 or M4—perfect for street or track builds.

  • ⚙️ OEM Fitment
    Designed specifically for the G80 M3 and G82/G83 M4 platforms. Installs using factory mounting points with no modifications required.

  • ☀️ UV-Resistant Gloss Finish
    Protected with a UV-stable high-gloss clear coat to prevent yellowing, fading, or cracking over time.

  • 🛠️ Performance + Style
    Improves aerodynamic efficiency while giving your build the carbon edge it deserves.


Vehicle Compatibility:

  • BMW M3 G80 (2021+)

  • BMW M4 G82 Coupe (2021+)

  • BMW M4 G83 Convertible (2021+)

View full details