TRE Pre-preg Carbon Fibre OEM Style Rear Diffuser for BMW G80 G81 M3 and G82 G83 M4
Looking for a BMW G80 M3 rear diffuser upgrade or a BMW G82 M4 rear diffuser that keeps that factory look but adds serious aggression and performance styling? The TRE pre-preg carbon fibre OEM style rear diffuser for the G8X platform is the perfect carbon fibre diffuser upgrade for anyone who wants premium materials, precise fitment and a truly OEM plus finish.
Manufactured in pre-preg carbon fibre using a 2x2 twill weave, this dry carbon diffuser matches OEM carbon perfectly while delivering a sharper, wider and more purposeful rear end. TRE engineered this diffuser using advanced 3D CAD to retain all OEM mounting points, so fitment is spot on and installation is straightforward. If you already run OEM carbon, this rear diffuser blends seamlessly for a cohesive factory look with added presence.
Why choose this BMW G8X carbon fibre rear diffuser
- Pre-preg carbon fibre construction for strength, light weight and durability
- 2x2 twill weave to match OEM BMW carbon fibre parts
- OEM style design for a clean, factory inspired appearance with added aggression
- Retains OEM mounting points for precise fitment and a direct replacement install
- Developed using advanced 3D CAD for accuracy and consistency
- Perfect upgrade for BMW G80 M3, G81 M3 Touring, G82 M4 Coupe and G83 M4 Convertible
At Nforcd we have run this TRE diffuser on our own G8X builds and numerous customer cars. Feedback on fitment, finish and overall look has been excellent, with customers praising how well it integrates with the OEM bumper while significantly enhancing the rear profile. If you want a G80 M3 diffuser or G82 M4 diffuser that looks factory and fits like it should, this is the one.
Pair it with matching TRE carbon
For the ultimate OEM plus package, pair this rear diffuser with a TRE rear spoiler and a TRE front splitter. The consistent 2x2 twill weave across all parts ensures a perfectly matched carbon fibre aesthetic front to back.
Compatibility
- BMW M3 Saloon G80 2020+
- BMW M3 Touring G81 2022+
- BMW M4 Coupe G82 2020+
- BMW M4 Convertible G83 2020+
What is in the box
- 1 x TRE pre-preg 2x2 twill carbon fibre OEM style rear diffuser
Fitment and installation
Direct replacement using OEM mounting points. Professional fitting recommended for the best alignment and finish. Nforcd offers installation at our Warwickshire facility. To request a fitting quote, email Sales@nforcd.com.
Search friendly keywords
BMW G80 M3 rear diffuser, BMW G81 M3 Touring diffuser, BMW G82 M4 rear diffuser, BMW G83 M4 diffuser, G8X carbon fibre diffuser, OEM style carbon diffuser, pre-preg carbon fibre diffuser, 2x2 twill carbon, dry carbon diffuser, BMW M3 carbon diffuser, BMW M4 carbon diffuser, rear valance, BMW G80 diffuser upgrade, BMW G82 diffuser upgrade, TRE carbon fibre diffuser, performance rear diffuser, carbon fibre styling, BMW M3 M4 carbon fibre parts.

