Tighten up the rear end of your G8X with this dry carbon fiber diffuser outer trim, designed specifically for the BMW G80 M3 and G82/G83 M4. This piece replaces the factory outer trim around the rear diffuser, adding sharper contrast and a more aggressive finish to the lower bumper.
It’s a subtle upgrade — but once installed, it completely cleans up the rear profile.
Clean Rear End Upgrade – OEM+ Look
This isn’t a full diffuser — it’s the trim that frames it, which is exactly why it stands out.
Replaces factory outer diffuser trim
Adds definition and contrast to the rear bumper
Clean OEM+ styling — not overdone
Works with stock or aftermarket diffusers
Real Dry Carbon Fiber Construction
Made using true dry carbon fiber, this trim offers a higher-end finish and better consistency than standard carbon parts.
Genuine dry carbon fiber construction
Lighter and stronger than traditional wet carbon
High-gloss UV-resistant clear coat
Tight, uniform carbon weave
No plastic backing or cheap overlays — this is real carbon built properly.
OEM Fitment – G8X Specific
Fits BMW G80 M3 (2021+)
Fits BMW G82 / G83 M4 (2021+)
Designed for factory rear diffuser setup
Direct replacement for outer trim pieces
No major modification required
Sits flush and lines up exactly with the bumper and diffuser.
Shipping & Warranty
Free shipping from the U.S.
Delivery time: 7–14 days after order processing
Secure packaging to prevent damage
Backed by a 1-year warranty (covers clear coat fading, yellowing, or cracking upon receipt)
