G80/G81/G82/G83 Dry Carbon Fibre Diffuser with Brake Light

Give your BMW M3 or M4 an unmistakable rear-end identity with the Quick Performance Dry Carbon Fibre Rear Diffuser, featuring a striking vertical F1-style brake light.
Designed for enthusiasts who want something beyond the conventional factory diffuser, this distinctive upgrade introduces sharper styling, sculpted detailing and an eye-catching central lighting feature to the rear of your BMW.
The diffuser's aggressive contours accentuate the G8X platform's wide rear stance, creating a more purposeful appearance that complements the vehicle's signature quad exhaust arrangement.
At the centre of the design sits a slim, vertically positioned F1-style brake light. Its distinctive orientation introduces a motorsport-inspired lighting signature, creating a striking visual focal point within the lower rear bumper.
Manufactured using premium pre-preg dry carbon fibre, the diffuser combines lightweight composite construction with an authentic carbon fibre weave and a refined finish.
The pre-preg manufacturing process uses carbon fibre reinforcement pre-impregnated with a controlled quantity of resin, allowing for consistent material distribution and precise composite construction. This delivers a high-quality component with an excellent strength-to-weight ratio.
Whether you're building a complete carbon fibre exterior, enhancing the appearance of your M3 Touring or creating a more aggressive M4 Convertible, the Quick Performance Rear Diffuser with Vertical F1-Style Brake Light provides a distinctive finishing touch that sets your BMW apart.

Key Features
Premium Pre-Preg Dry Carbon Fibre: Manufactured using pre-impregnated carbon fibre for controlled resin distribution, consistent construction and a refined finish.
Slim Vertical F1-Style Brake Light: Features a distinctive vertically positioned lighting element integrated into the centre of the diffuser.
Aggressive Rear-End Design: Adds sharper contours and greater visual depth to the lower rear bumper.
Distinctive Lighting Signature: Introduces a motorsport-inspired visual feature that complements the BMW's factory rear lighting.
Lightweight Composite Construction: Provides an excellent strength-to-weight ratio while minimising unnecessary additional weight.
Quad Exhaust Integration: Designed to complement the signature four-tailpipe arrangement of BMW's M3 and M4.
Coordinated Carbon Fibre Styling: Pairs with carbon fibre front splitters, side skirts and rear spoilers for a cohesive exterior.

Vehicle Compatibility
BMW M3 Competition xDrive G80
BMW M3 Competition xDrive G81
BMW M4 Competition xDrive G82
BMW M4 Competition xDrive G83


Please note: The integrated vertical light is an aftermarket lighting accessory. Its wiring, brake-light operation and compatibility with the vehicle's existing electrical system must be confirmed before installation. Any aerodynamic benefits of the diffuser have not been independently verified. Professional installation is recommended to ensure secure mounting, adequate exhaust clearance and safe electrical integration.