Aluminum Rear Diffuser - 4 Pcs (Universal)This rear diffusers is made of quality aluminum. They came assembled with stainless steel screws. They have been designed to be universal, and should fit most car models. Both center pieces can be interchanged on this model depending the style you want ! Mounting holes are predrilled in all our diffuser parts. Brackets and mounting hardware are not included since it's a universal product. Feel free to ask for brackets or hardware. Professionally