BMW G82 M4 & M440i Carbon Fiber Rear Spoiler
Ships in 3–7 business days · $10 flat-rate shipping per order, tracked, anywhere in the US
Not sure it fits? for a fast answer, or text / call (619) 706-9046.
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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.
| Vehicle | BMW M4 (G82/G83), BMW M440i (G22) |
|---|---|
| Model years | 2021–2026 |
| Trims | M4, M440i Coupe |
| Material | Carbon Fiber |
|---|---|
| Part type | Aerodynamics & Body Kits |
| SKU | CBG8X-8035 |
| Condition | New |
Shipping
- Processing time varies by part — current availability is shown above the Add to cart button.
- $10 flat-rate shipping per order to any US address — one charge even if you add more parts that ship the same way.
- Large parts like this may ship by freight. Inspect the crate and note any damage with the driver before signing.
- Tracking is emailed when your order ships. Route package protection is available at checkout.
Returns
- Request a return within 30 days of delivery by emailing hello@royalperformanceusa.com — an approval / RMA is required before sending anything back.
- Items must be unopened, unused and uninstalled, in original packaging. A 20% restocking fee applies and return shipping is paid by the customer.
- Installed, altered, painted, custom, special-order and pre-order items can't be returned.
- Report shipping damage within 72 hours with photos of the box, label and part.
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