Autotecknic Carbon Fiber Rear Wheel Arch Extension Set - BMW G80 M3Autotecknic Part # BM 0243 Small rock chips can cause unsightly damage to your beloved G80 M3. AutoTecknic has specifically made the carbon fiber rear wheel arch extensions in the pre preg dry carbon method to prevent unavoidable damage caused by minor rock chips and guard against water puddles and newly paved tar on the road. Not to mention that the extension on the rear wheel arches looks more trendy. These AutoTecknic carbon fiber rear wheel arch