Autotecknic Dry Carbon Fiber Fender Trim Set - BMW G80 M3 G82 M4Autotecknic Part # BM 0407 The long awaited autoclave dry carbon fiber fender trim covers for the G80 M3 and the G82 G83 M4 are finally available! These 3K twill weave dry carbon fiber fender trim set have the ultra thin thickness of 1 millimeter, made with AutoTecknic's signature pre preg dry carbon technology. Dry carbon is the highest quality version of carbon fiber products that are produced. Dry carbon fiber's name comes from its manufacturing