100 percent motor sport character. The rear diffuser is made of carbon fibre, which is meticulously crafted by hand. Its striking design is perfectly tailored to the vehicle. The rear diffuser creates an even more dynamic appearance – and makes the car’s muscular look even more impressive. Benefits of the M Performance rear diffuser at a glance. Perfectly complements the design and geometry of the car. Exceptionally distinctive look thanks to slender, eye-catching fins. Aerodynamic characteristics further improve dynamics. 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 M Performance rear diffuser, carbon fibre. The M Performance carbon components are made entirely from carbon fibre-reinforced plastic (CRP, carbon). The rear diffusor is sealed with clear varnish. 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. When installing the carbon rear diffuser on cars with comfort access (SA 322), the Smart Opener subfunction. Can no longer be used. A GOP (General Operating Permit) is not required since the parts ranges are already homologised with the. Represented by part number 15 in the diagram. 2′ F87 M2, 2′ F87 M2 LCI.