Carbon Fibre Performance Rear Diffuser for BMW M3 & M4 (2014–2019 F80 F82 F83)
Transform the rear of your BMW M3 or M4 with the AUTOID Carbon Fibre Performance Rear Diffuser. This one-piece 2x2 twill carbon fibre (CFRP) replacement diffuser delivers an aggressive, motorsport-inspired look while maintaining OEM-style fitment and quality. Designed around factory parts and mounting points, it fits beautifully and elevates the presence of the F80 M3 and F82/F83 M4.
We’ve fitted and run this diffuser on our own F8x platform cars and customer feedback has been consistently positive, praising the precise fit, premium weave and the way it sharpens the rear end styling. If you’re searching for a BMW M3 rear diffuser, BMW M4 rear diffuser, F80 carbon fibre diffuser, F82 carbon fibre diffuser or F83 carbon fibre diffuser, this is the clean, OEM-plus solution.
Why choose this carbon fibre rear diffuser
- One-piece 2x2 twill CFRP construction for a high-end, uniform carbon weave
- Designed around OEM parts for excellent fitment and a direct replacement install
- Uses factory-style mounting points and clips for a secure, rattle-free fit
- Enhances the rear bumper with a sharper, more performance-focused look
- Ideal upgrade for BMW M3 F80 and BMW M4 F82/F83 owners seeking OEM-plus styling
What’s in the box
- 1 x AUTOID Carbon Fibre (2x2 Weave, CFRP) Performance Rear Diffuser
Compatible models
- BMW M3 (2014–2018, F80)
- BMW M4 (2014–2019, F82 Coupe, F83 Convertible)
Installation
This diffuser is a direct replacement for the OEM unit and utilises the existing clips and 8 mm screws. Remove the two central screws and the two outer screws, then gently release the upper clips and withdraw the factory diffuser. Align the AUTOID carbon fibre diffuser with the mounting tabs, press the clips into place, and refit the four 8 mm screws to secure.
If you prefer professional installation, Nforcd offers fitting at our Warwickshire facility. Request a fitting quote: Sales@nforcd.com.
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