The COBB 3" SS Turboback Exhaust is engineered specifically to match the performance needs of the 2007-2009 MAZDASPEED3. An exceptionally well designed system, fabricated from quality materials with precision standards. The high flow catalytic converter and mufflers offer optimal performance gains, tasteful looks, and unparalleled durability with a mellow exhaust tone. Constructed as a direct fit replacement makes installation a breeze. Simply bolt the system on and enjoy the power and sound!