BMW E90 GT Carbon Rear Diffuser

E90 BMW M3 carbon fiber rear diffuser

Designed, engineered, and manufactured in the USA, the GT dry carbon rear diffuser is a stylish accent to the back of any M3 model 3 series! Each diffuser is constructed by hand from 100% carbon fiber and composite materials inside and out. Attention to detail is always our goal. This item is no different! Proper mounting and fitment was at the top of our list. Smooth mounting surfaces and reinforced bolt holes make sure your diffuser stays on, and looking good for years to come. The aggressive quad fin design exclusive to Challenge wraps your M3’s tail pipes giving the rear a true race car look on the street or circuit. Made with the finest 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


MSRP: $950.00 USD

E90 BMW M3 carbon fiber rear diffuser