RKP E90 M3 GT Carbon Rear Diffuser - Race

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Designed, engineered, and manufactured in the USA, the RKP dry carbon rear diffuser is a stylish accent to the back of any M3. Each diffuser is constructed by hand from 100% carbon fiber and composite materials inside and out. Smooth mounting surfaces and reinforced bolt holes will keep it secure and looking good for years to come. To ensure quality, it's made with Dry Carbon materials available at our partner’s Indy car and aerospace facility. Available in 1×1 plain or 2×2 twill weave.


  • Dry carbon construction
  • Flawless fitment
  • Extremely light and rigid
  • Dupont clear coated and buffed to a mirror finish

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