F8X PSM Style Rear Carbon Fiber Diffuser M3 M4


Perhaps the aero component that gives the F80 F82 F83 M3 M4 rear tooshy the treatment it deserves. Arguably the biggest change you can make for both looks and aerodynamics. 

This 5 piece carbon fiber diffuser is made to fit all F8X vehicles and comes with required hardware. Installation will require an extra pair of hands. We recommend a professional shop putting it on. See photos for reference.