To further enhance the styling and downforce of the rear end of the vehicle Vorsteiner designers have developed a lightweight carbon fiber aero diffuser which bolts onto the factory M3/M4 rear bumpers. Vorsteiner’s Autoclaved Pre-Preg Carbon Fiber structure gives parts superior stiffness, aerospace strength & durability compared to traditional hand laid carbon fiber composites.

FEATURES:

• Carbon Fiber structure
• Aerospace Strength & Durability
• 1×1 Carbon Fiber Weave
• Fits the F80, F82, and F83 M3 and M4