G8X M3/M4 - Carbon Fiber Outer Diffuser TrimG8X M3 M4 Carbon Fiber Outer Diffuser Trim Enhance the aggressive rear styling of your G8X M3 or M4 with our Carbon Fiber Outer Diffuser Trim. Designed to perfectly complement the factory diffuser, these trims provide a lightweight, high quality carbon fiber accent that elevates both aesthetics and presence. Key Features: Direct Fit Design: Precision engineered to integrate seamlessly with your factory rear diffuser for a clean, OEM style finish.