MP Carbon Fiber Diffuser - G80 M3 / G82 / G83 M4MP Carbon Fiber Diffuser G80 M3 G82 G83 M4 Give the rear end of your G8X M3 or M4 an aggressive, OEM+ look with the MP diffuser. The MP diffuser is made using 100% genuine dry carbon fiber to ensure a consistent, high quality fit and finish. All of the carbon fiber parts on our website come equipped with a high quality clear coat to prevent UV damage and protect against minor road debris. This is a direct replacement for your OEM diffuser; however,