BMW G80/G82, M3/M4 Prepreg Carbon Fiber Body Kit Rear Bumper Side Splitter Aero

Complete the aggressive rear-end styling of your BMW G80/G82 M3 & M4 with these Prepreg Carbon Fibre Rear Bumper Side Splitter Aero Extensions — engineered to enhance aerodynamic presence while delivering a sharper, more motorsport-inspired appearance.

Designed to integrate seamlessly with the factory rear bumper lines, these rear aero splitters add extra depth, aggression, and visual width to the rear profile of the vehicle. The sculpted aero design helps create a more track-focused look while perfectly complementing other carbon fibre exterior upgrades such as diffusers, side skirts, and front lips.

Constructed using premium prepreg carbon fibre manufacturing technology, these aero extensions provide exceptional strength, lightweight performance, and a flawless high-gloss carbon weave finish. Prepreg carbon fibre offers superior consistency, reduced resin content, and improved structural rigidity compared to traditional wet carbon manufacturing methods — making it the preferred choice for premium motorsport applications.

Whether you're building a refined OEM+ street setup or a full carbon-equipped performance build, these rear bumper aero splitters provide the perfect finishing touch for the G80/G82 platform.

Key Features

Prepreg Carbon Fibre Construction

Manufactured using premium prepreg carbon fibre for superior strength, lightweight performance, and high-end finish quality.

Aggressive Rear Aero Styling

Enhances the rear bumper with sharper aerodynamic lines and a wider, more aggressive appearance.

Gloss Carbon Fibre Finish

Premium gloss weave finish delivers a true motorsport-inspired OEM+ aesthetic.

Lightweight Exterior Upgrade

Carbon fibre construction reduces unnecessary weight while maintaining excellent rigidity and durability.

Precision Fitment Design

Engineered specifically for the BMW G80/G82 chassis for seamless body integration and factory-style fitment.

Motorsport-Inspired Appearance

Perfectly complements carbon fibre front lips, side skirts, diffusers, and rear spoilers.

Styling Benefits

• More aggressive rear-end appearance
• Enhanced aerodynamic styling
• Wider and lower visual stance
• Premium prepreg carbon fibre aesthetics
• OEM+ fitment with motorsport-inspired design
• Perfect addition to full carbon exterior builds

Vehicle Fitment

BMW G80 M3 (2021+)
BMW G82 / G83 M4 (2021+)

Please Note

Professional installation is strongly recommended.
Minor adjustments may be required during installation depending on vehicle and bumper tolerances.

Why Choose Proven Performance Parts

We specialise in high-performance parts for European vehicles — particularly Volkswagen GTI & R models, Audi S/RS, and BMW M applications. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.