BMW G82 M4 & M440i Carbon Fiber Rear Spoiler

Form That Follows Performance

Turn heads and cut air with the CarBahn Carbon Fiber Rear Spoiler—designed to elevate the rear profile of your BMW M4 or BMW M440i while delivering real aerodynamic benefits. Precision-molded from high-quality carbon fiber, this spoiler reduces rear-end lift, enhancing stability at high speeds without compromising the clean factory lines of your G82.

Inspired by motorsport and engineered by Steve Dinan, the rear spoiler adds downforce where it counts, delivering better traction, sharper turn-in, and improved confidence when driving at the limit. Whether you're on the street or the track, it’s the perfect balance of aggressive styling and functional performance.

• Engineered by Steve Dinan for optimal aerodynamic efficiency
• Lightweight carbon fiber construction—rigid, durable, and stunning
• OEM fit and finish—installs seamlessly with factory mounting points
• Fits BMW G82 M4 Coupe & M440i Coupes

Make a statement every time you pull away.
Add race-bred attitude to your M4 with the CarBahn Carbon Fiber Rear Spoiler.