Upgrade the lower rear profile of your 2025–2026 Audi RS3 Sedan (8Y.5 facelift) with this AHACARBON dry carbon fiber rear diffuser. Designed for the lower section of the factory RS3 rear bumper, this replacement-style diffuser adds a sharper carbon fiber finish around the rear bumper and exhaust area while preserving the compact, wide appearance of the facelift RS3.
This product is intended for customers looking for a 2025 Audi RS3 rear diffuser, 2026 Audi RS3 rear diffuser, or Audi RS3 8Y.5 dry carbon fiber rear diffuser. Fitment must be confirmed against the complete factory rear bumper before installation.
Fitment
| Make |
Audi |
| Model |
RS3 Sedan |
| Model Year |
2025–2026 |
| Generation |
8Y.5 Facelift |
| Market / Body Style |
US-market RS3 Sedan |
| Required Bumper |
Factory RS3 rear bumper |
| Installation Position |
Lower rear bumper diffuser area |
| Installation Type |
Aftermarket replacement-style diffuser |
Important: Model year alone is not enough to confirm compatibility. Compare the complete rear bumper, lower diffuser shape, reflector position and exhaust outlet area with the product photos before ordering.
Not Compatible With
- 2022–2024 Audi RS3 8Y pre-facelift models.
- Audi A3 or Audi S3 rear bumpers.
- Audi RS3 Sportback models.
- Standard A3 or S3 bumpers converted with RS-style trim.
- Aftermarket, repaired, reshaped or previously modified rear bumpers unless compatibility is confirmed from photos.
- Vehicles with non-standard exhaust outlets or modified rear bumper hardware unless confirmed before ordering.
Why This Rear Diffuser Suits the Audi RS3
The facelift Audi RS3 uses a strong RS-specific rear design built around a pronounced lower diffuser, a center red reflector and the model’s distinctive oval exhaust outlets. This dry carbon fiber diffuser is intended to give that lower bumper area a more defined appearance without changing the RS3 into a visually unrelated body-kit style.
The carbon fiber surface adds contrast beneath the rear bumper and helps frame the exhaust area, making it especially relevant for customers who already have carbon fiber mirror covers, a rear spoiler or front-end carbon details. For the cleanest result, the weave direction and gloss level should remain visually consistent with the other carbon fiber parts on the vehicle.
The original RS3 rear design includes a functional diffuser, a centrally positioned red reflector and RS-signature oval tailpipes. Before installation, confirm whether the factory reflector, mounting brackets or other original trim must be transferred to the new diffuser.
Product Specifications
| Product |
Rear bumper diffuser |
| Material |
Dry carbon fiber |
| Carbon Pattern |
3×3 carbon fiber weave |
| Surface Finish |
Gloss clear-coated finish |
| Surface Protection |
UV-resistant clear coating |
| Installation Style |
Replacement-style installation |
| Included Hardware |
Self-tapping screws |
| Package Contents |
One rear diffuser and installation hardware |
Stock, Production and Shipping
Fulfillment location depends on current inventory. In-stock units may ship from a local warehouse, while low-volume or temporarily unavailable units may require approximately 15–30 business days of factory production before dispatch.
Please contact us with your delivery ZIP code before ordering to confirm the current ship-from location, handling time and estimated delivery date .
Related Audi RS3 Exterior Parts
Browse more 2025+ RS3 (8Y.5) exterior parts, explore all Audi RS3 carbon fiber parts, or view the wider Audi carbon fiber parts collection.
For product compatibility, installation questions or help identifying your rear bumper, send your VIN and vehicle photos through our Contact Us page before ordering.
