BMW F8x M3/M4 RWS Forged Carbon Diffuser

  • Sale
  • $1,399.95
  • Regular price $1,750.00

You guys asked for it, so we had to make it! We've added another RWS diffuser to the lineup - This one stands apart from the other RWS diffuser in that it has 3 fins in the center section for an unrivaled sleek appearance. To take this new item one step further this RWS rear diffuser features a forged carbon finish! The RWS Forged carbon M3/M4 diffuser features 1pc construction - no cheap 3pc construction here that leaves you with gaps between the pieces. We produce the forged diffuser in the same factory with the same mold, just changing some of the raw materials which gives us a vastly more bespoke finish when compared to the standard CF. Superb fitment and quality come standard when you opt for the RWS forged carbon diffuser. After manufacturing we finish each item with a UV resistant clearcoat just like the standard CF counterpart. Whether you just got your car and it's time to upgrade the OEM painted diffuser, or if you're just getting bored of your current CF diffuser then the RWS forged M3/M4 diffuser is an excellent option.


  • 2015+ BMW F80 M3 Sedan including CS
  • 2015+ BMW F82/F83 M4 Coupe/Convertible including GTS/CS


  • Bespoke forged carbon appearance
  • Installs via OEM mounting locations
  • Maintains ground clearance, no scraping or snagging on parking blocks
  • UV resistant clearcoat
  • Installs with self-tapping screws
  • Quality checked and shipped from Southern California

The forged carbon M3 and M4 diffuser installs via tabs and OEM mounting locations. Simply pull your current diffuser off and slide this one in and secure with the screws. Estimated install time is 30 minutes.