A striking visual at the rear: The rear diffuser is made of premium quality carbon fibre, and further underlines the car’s exclusive athletic pedigree. With their chiselled look, the striking fins ensure that the car looks more dynamic and masculine than ever. The carbon fibre rear diffuser is perfectly tailored to the vehicle design. The benefits of the BMW M Performance carbon fibre rear diffuser at a glance. Premium, athletically elegant look. 100 percent carbon fibre, hand-manufactured. Perfectly complements the vehicle design. Not suitable for cars with a trailer tow hitch. IMPORTANT NOTICE: This product is for installation by trained technicians and not by an end user. Installation must be performed exclusively by a specialist workshop. Your local BMW Centre will be able to assist with installation. 1 BMW M Performance rear diffuser, carbon fibre. The M Performance carbon front add-on section, the carbon rear diffuser and the M Performance carbon rear spoiler are made entirely from carbon fibre-reinforced plastic (CRP, carbon). The rear diffusor is sealed with clearcoat. The materials are UV and temperature-resistant. Material information: The carbon products are handmade. The tailoring and draping of the tissue layers, the curing process of the plastic matrix and the milling of the raw parts take several hours. A special challenge is the subsequent finishing. In order to reinforce the depth effect, parts become a repeated varnish. Every single coating layer has to be dried and cutted afterwards. After applying the last coat of varnish, the carbon products will be polished to high gloss (exceptions are the open pored carbon designs). The carbon products are qualified by applicable BMW standards. This is the only way to ensure that the high requirements, f. Age- and temperature-resistant without crack formation or varnish delamination of the substrate can be met and to avoid yellowing of the matrix. This high grade of handmade and qualification expenses is responsible for the price. A GOP (General Operating Permit) is not required since the parts ranges are already homologated with the overall vehicle. Represented by part number 11 in the diagram. 5′ G30, 5′ G31. We have one of these to clear at this amazing price.