3DDesign Carbon Rear Diffuser for F9x BMW M8

The 3DDesign Carbon Rear Diffuser for F9x BMW M8 is a high-quality, performance-focused upgrade that enhances the rear-end aesthetics while improving aerodynamic efficiency. Made from lightweight 2×2 twill carbon fiber, this diffuser smooths airflow under the vehicle to increase high-speed stability and reduce turbulence. Precision-engineered for F91, F92, and F93 M8 models, it integrates seamlessly with the factory rear bumper, providing a clean, aggressive, and motorsport-inspired look. Combining striking visual impact with functional aerodynamic benefits, this carbon rear diffuser is ideal for enthusiasts seeking both style and performance upgrades.

Gtechniq EXOv5 Coating

• This optional coating forms a durable, long-lasting bond that will not wash off or break down, providing reliable, extended protection for paintwork and other treated surfaces. It creates a strong protective barrier that helps shield against damaging environmental contaminants such as dirt, road grime, and pollutants, while also offering enhanced scratch resistance to maintain a clean, high-gloss finish over time. For those seeking maximum durability and performance, the coating can be applied in multiple layers to increase thickness, strengthen protection, and further extend the life of the surface.

Features

• Lightweight 2×2 twill carbon fiber
• Aggressive, motorsport-inspired styling
• Improves airflow and reduces turbulence under the vehicle
• Seamlessly replaces and aligns with the factory rear bumper
• Lightweight construction without compromising rigidity
• Uncoated carbon, ready for clear coat or custom paint
• Enhances high-speed stability and rear-end presence

Applications

• BMW M8: F91, F92, F93 (2019-present)

Notes

• Some photos show Carbon Under Splitters which are not included, click here to purchase
• Hands-free tailgate opening function might be impacted by install

About 3DDesign

3DDesign is a Japan-based BMW specialist recognized for OEM-level fit, refined aesthetics, and real-world performance. Drawing on motorsport development, the brand engineers aerodynamic components, wheels, exhaust systems, suspension, and interior accessories using advanced CAD / CAM, CFD, and road / track testing. Its catalog emphasizes lightweight, high-quality materials — such as carbon fiber, forged aluminum, and titanium — paired with precise tolerances for seamless integration with factory systems. The result is a cohesive, OEM-plus driving experience that elevates both form and function across modern BMW platforms.