The Dinan Rear Diffuser Surround replaces only the upper portion of the factory diffuser with a carbon fiber accent, retaining the factory gloss black lower section so it works with any exhaust configuration. It is made from 2x2 gloss twill dry carbon fiber (pre-preg) for impact resistance and strength, and is clear coated for UV protection and fade resistance. The piece uses the factory mounting tabs for installation and pairs with the Dinan Rear Side Splitters to complete the rear look.
| Type | Rear Diffuser Surround |
| Position | Rear |
| Material | Carbon Fiber |
| Finish | 2x2 Gloss Twill, Clear Coated |
| Part Number | D980-0049 |
Documents: Installation Instructions (PDF)
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2026 | BMW | M3 | Base |
| 2021-2026 | BMW | M3 | Competition |
| 2022-2026 | BMW | M3 | Competition xDrive |
| 2021-2026 | BMW | M4 | Base |
| 2021-2026 | BMW | M4 | Competition |
| 2022-2026 | BMW | M4 | Competition xDrive |
| 2023 | BMW | M4 | CSL |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
