If your not sure on what a good mod would be to do on a E92 BMW M3, look no further then aFe (Advanced Flow Engineering). aFe has a strong history with manufacturing power proven and quality air intake kits for various vehicles. One of their newest intake kits is for the V8 BMW. This fits all 08+ coupe or sedan models. Designed to have a stealth and OEM look with the factory cover, the aFe cold air intake offers 41% more air flow then stock. Check out more info and pictures on this aFe Cold Air Intake for the BMW M3 Here.