Most aggressive Diffuser on the market for the E92 M3!! Personally, we think it's probably the best looking addition to the already aggressive rear booty. However, it has so much functional benefits for anyone who loves driving! It's a must for all the Tracking junkies to get the most aerodynamic from your E9X M3!! EXPECTATION: Beautiful 2X2 Carbon Fiber Weave Functional air duct and reduce drag Oem Quality High Gloss Clear Coat Excellent Fitment - holes pre drilled. Please add additional bolts for security Direct Bolt onto your E90 E92 E93 M3 Professional Installation is required APPLICATION: 2008-2013 E90 / E92 / E93 M3 ONLY NOTE: Diffuser requires professional installation from experience aftermarket parts installer. Expect 2 hours installation time . No instruction is included. This will also lower the rear end, so please be careful when driving. It may scrape.