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RW Carbon

RW Carbon BMW F8X M3/M4 GTX Carbon Fiber Diffuser

RW Carbon BMW F8X M3/M4 GTX Carbon Fiber Diffuser

Regular price $1,799.95 USD
Regular price Sale price $1,799.95 USD
Sale Unavailable


GTX styling offers the most aggressive appearance for your M3 or M4. Our new GTX rear diffuser features 4 piece design which includes the diffuser, 2 side extensions and the undertray. The F8X M3/M4 GTX carbon fiber diffuser will seamlessly match other RW or OEM parts you have on the vehicle as we craft them from 2x2 carbon fiber. We know our customers care deeply about the parts they choose to install on their vehicle, which is why we only use the highest quality CF fabric, clearcoats and resin in the making of our products. Just like the rest of our product line, this GTX carbon fiber diffuser comes with the RW fitment and quality guarantee. Installation is purely bolt-on and does not require and special modifications or cutting.


This GTX diffuser for the F8x M3 and M4 uses a combination of OEM screws/mounting locations, supplied hardware and self tapping screws. Due to the large nature of this diffuser we highly recommend professional installation.


  • 2015-2020 F80 M3
  • 2015-2020 F82, F82 M4
  • 2016-2020 F82 M4 GTS & CS


  • Genuine 2x2 carbon fiber construction
  • 4pc kit includes; diffuser, 2 side extensions, undertray
  • Finished with UV resistant clear coat
  • Usually in stock at our California warehouse
  • Bolt on installation
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