R1 Designed F8X Carbon Fiber Diffuser

R1 Designed F8X Carbon Fiber Diffuser



Out of stock

F80 M3 Only 2012-2018
F82 M4 Only 2012-2019
F83 M4 Only 2012-2019

Out of stock

Email when stock available

All in stock products ship within 24 business hours.

Be careful of your selected product variants if applicable. Shipping and handling could be affected.

For inquiries to ship International, please email us at [email protected]

All items sold are available for a return or exchange (If applicable) within the 14 days of receiving the product.

To learn more visit our Return Policy.

For further questions for please contact us at, [email protected]


This product can expose you to chemicals including DEHP and DINP, which is known to the State of California to cause cancer and birth defects or other reductive harm. 

For more information go to www.P65Warnings.ca.gov.


The R1 Designed F8X Carbon Fiber Diffuser is a meticulously crafted automotive accessory tailored specifically for BMW F80 M3/F82 M4/F83 M4 models. Precision-engineered using premium-grade carbon fiber, this diffuser is designed to offer not only visual enhancement but also improved aerodynamics and performance.

Crafted from high-quality carbon fiber, renowned for its exceptional strength-to-weight ratio, the R1 Designed F8X Carbon Fiber Diffuser ensures durability without compromising on weight. This construction not only enhances the visual appeal of your BMW but also contributes to improved handling and agility.

The diffuser’s design is meticulously crafted to seamlessly integrate with the rear bumper of the BMW F80 M3/F82 M4/F83 M4, creating a cohesive and aggressive aesthetic that complements the vehicle’s sporty profile. Its precise fitment ensures a factory-like appearance, giving the impression of a custom-built enhancement rather than an aftermarket addition.

Beyond its aesthetic appeal, the R1 Designed F8X Carbon Fiber Diffuser is engineered to optimize airflow underneath the vehicle, reducing drag and enhancing stability at higher speeds. This aerodynamic improvement not only contributes to a more dynamic driving experience but also enhances fuel efficiency and overall performance.

Key Features:

  • Material: High-quality carbon fiber
  • Precision Fitment: Designed for the F80 M3/F82 M4/F83 M4 chassis for seamless integration.
  • Lightweight: Carbon fiber construction reduces weight while maintaining strength.
  • Aerodynamic Enhancement: Improves airflow and downforce for better stability.
  • Sleek Design: Carbon Fiber lightweight design.

We encourage customers to seek professional installation since equipping these products will require the removal of parts currently installed, to better secure fitment to your vehicle.

For any questions regarding fitment compatibility please email us at, [email protected].

Build Material:

  • Fiber-Reinforced Polymer and Glossy Carbon Fiber Coating.