These carbon fiber rear bumper splitters are the perfect addition to any F80 M3 or F82/F83 M4. Installation is easy, only requiring 3M tape, and can be completed in under 30 minutes. Each set of F8X CF rear splitters features 100% carbon fiber craftsmanship and is finished with a UV resistant clearcoat. Whether your car is mainly stock or it already has other carbon fiber items installed – These M3 and M4 carbon fiber upper splitters are sure to give your car that personalized feel.