An absolutely must have part, especially when paired with the Eventuri carbon fiber plenum. The Eventuri E9X M3 Airbox lid is a direct replacement for the OEM plastic version. Crafted from Prepreg Carbon Fiber it allows for more intake sound to be heard as compared to the OEM lid. Available in black carbon and colored Kevlar options. The fitment is perfect and secures in the same way as the oem part with 0 issues.