3D Design Carbon Fibre Rear Diffuser for BMW M3 G80 G81 and BMW M4 G82 G83 2020+. Premium Japanese-designed and developed CFRP rear diffuser upgrade for G8X. This full one-piece carbon fibre rear diffuser delivers genuine aerodynamic benefits, aggressive styling and an OEM-plus finish for BMW M3 and BMW M4 owners seeking the ultimate G80 G81 G82 G83 rear bumper diffuser upgrade.
This 3D Design carbon fibre rear diffuser is constructed using a CFRP infusion process for exceptional strength, lightweight performance and a high-end finish. It transforms the base BMW M3 and BMW M4 rear bumper with sharper aero, deeper fins and a motorsport-inspired look. Perfect for enthusiasts searching for BMW M3 G80 rear diffuser, BMW M3 Touring G81 carbon diffuser, BMW M4 G82 rear diffuser, BMW M4 G83 carbon fibre diffuser, G8X rear valance, and 3D Design diffuser upgrades.
Why choose the 3D Design CFRP Rear Diffuser for your G8X
- Full one-piece carbon fibre diffuser in premium CFRP infusion for superior fit and finish
- Genuine aerodynamic enhancement with pronounced fins for improved airflow and stability
- OEM-plus styling that complements the factory rear bumper and exhaust layout
- Japanese design and development by 3D Design for class-leading quality
- Ideal upgrade for BMW M3 G80 G81 and BMW M4 G82 G83 owners wanting a performance rear bumper diffuser
We have fitted this diffuser on customer cars and the feedback has been consistently positive. Fitment, weave quality and overall presence are excellent, making it one of the most desirable G8X carbon fibre rear diffusers available.
What is included
- 1 x 3D Design Carbon Fibre Rear Diffuser (CFRP, infusion, full one-piece)
- 2 x 3D Design Carbon Fibre Rear Insert Pieces (optional)
Compatibility
- BMW M3 Saloon G80 2020+
- BMW M3 Touring G81 2022+
- BMW M4 Coupe G82 Pre-LCI 2020 to 2024
- BMW M4 Coupe G82 LCI 2024+
- BMW M4 Convertible G83 Pre-LCI 2020 to 2024
- BMW M4 Convertible G83 LCI 2024+
Key search terms
BMW M3 G80 rear diffuser, BMW M3 Touring G81 carbon fibre diffuser, BMW M4 G82 rear diffuser, BMW M4 G83 carbon fibre rear diffuser, G8X carbon diffuser, G8X rear valance, carbon rear bumper diffuser, 3D Design diffuser, CFRP rear diffuser, BMW M3 M4 aero upgrade, BMW M3 M4 carbon styling, G80 G81 G82 G83 diffuser 2020+ LCI Pre-LCI.
Fitting and installation
Professional installation is recommended for the best result. Nforcd offer fitting at our Warwickshire location. To request a fitting quote, please contact Sales@nforcd.com.
If you are upgrading other parts of your G8X aero kit, this 3D Design carbon fibre rear diffuser pairs perfectly with additional G80 G81 G82 G83 carbon accessories for a cohesive OEM-plus look.








