Extended — 10% off everything 10OFF

BMW G80 G82 G83 M3 M4 Rear Bumper Carbon Fiber Trim – Prepreg Dry Carbon Fiber

Fits BMW G80 M3 (2021+), BMW G82/G83 M4 (2021+)

Text 609-525-4865

Original price was: $699.00.Current price is: $599.00.

You save $100.00 (14%)

Extra 10% off with code 10OFF ends in

Limited stock Order now before it sells out.

Usually ships within 5 business days

Shipping to the US: $83.00 Details

BMW G80 M3 / G82 G83 M4 Carbon Fiber Outer Diffuser Trim

Complete the look of your G8X rear diffuser with our Carbon Fiber Outer Diffuser Trim, designed to replace the factory gloss-black trim surrounding the OEM diffuser.

Crafted from genuine 2×2 carbon fiber, this trim adds a clean, aggressive finish while seamlessly integrating with the rest of your vehicle’s carbon fiber components. It can be installed over your OEM or compatible aftermarket diffuser and is designed for a straightforward, bolt-on installation with no cutting or permanent modifications required.

As with all Unit17 products, we focus on quality, fitment, and appearance. Each piece is manufactured using high-quality carbon fiber materials, resin, and UV-resistant clearcoat to deliver a premium finish that complements the factory lines of the G8X platform.

Features:

  • Designed for BMW G80 M3 / G82 G83 M4
  • Genuine 2×2 carbon fiber construction
  • Replaces factory gloss-black outer diffuser trim
  • Compatible with OEM and select aftermarket diffusers
  • Bolt-on installation
  • No cutting or permanent modifications required
  • Premium UV-resistant clearcoat
  • Aggressive OEM+ appearance
  • Designed for excellent fitment and finish

  • BMW G80 M3 2021
  • BMW G80 M3 2022
  • BMW G80 M3 2023
  • BMW G80 M3 2024
  • BMW G80 M3 2025
  • BMW G80 M3 2026
  • BMW G82/G83 M4 2021
  • BMW G82/G83 M4 2022
  • BMW G82/G83 M4 2023
  • BMW G82/G83 M4 2024
  • BMW G82/G83 M4 2025
  • BMW G82/G83 M4 2026

Fitment guarantee — If a part doesn’t fit the vehicle listed on its product page, contact us before installing and we’ll cover the return shipping for a refund or replacement.

Complete your BMW

More diffusers for BMW

Why Unit17

Carbon parts from people who drive them

LOCATION: NJ, USA

Founded in 2014, Unit 17 is the brand created by car enthusiasts who specialize in aftermarket carbon fiber for sports cars, luxury vehicles and performance vehicles.

Our company aims to provide the highest quality pre-preg carbon fiber styling parts.  Being able to relate to fellow enthusiasts who share our passion for motoring is the key to Unit 17’s success.

Taking pride in our quality, service, and product fit is one of our top priorities.

Ask about fitment

Tell us what you drive and we’ll confirm this part fits before you order — usually within a few hours.

Year, make, model and any existing mods — e.g. 2022 BMW G80 M3, M Performance lip

The product you’re looking at is sent with your question.