Your engine can only breathe in as much air as it can breathe out. One of the easiest and cost effective ways to add power to your engine without major modification is adding an intake or exhaust system. This is especially true on turbocharged engines, where intake and exhaust alone can make large amounts of horsepower. For proven horsepower gains, and high quality parts for your 04-08 MazdaSpeed 6, CorkSport has you covered.