RW Carbon BMW G82/G83 M4 CF Performance Style Diffuser SidesBegin or finish off your carbon fiber journey of your BMW G82 G83 M4's appearance with ese Performance Style Carbon Fiber Diffuser Sides. These outside diffuser Sides are crafted from genuine 2x2 carbon fiber that will nicely match any other carbon fiber parts you already or will have on your car from RW Carbon. To ensure that the diffuser pieces have a lasting shine and shimmer we finish off each piece with a thick and high quality clear coat.