Suvneer carbon fiber rear bumper diffuser for W211 E55 and E63 are 1 of our best seller for W211 chassis. They are a must have for balancing the flow from the front lip to the rear bumper splitters / diffuser. They are mounted with self tapping screws and washers. The rear bumper needs to come off and install self tapping screws from the back of the bumper for perfect fitment.

Build Material: fiber-reinforced polymer & glossy carbon fiber overlay