Reviewed By Russell J (POLAND, ME) Reviewed for a 2006 Audi A4 —11/7/2015 12:44 AM
Installation instructions were easy to follow. Had to do some minor modifications to holes for screws. One would not line up correctly. Overall well made and easy to put in. Engine breathes better. Installed with magnaflow exhaust on 07 Audi A4. Runs great sounds awesome and mileage increase was noticeable right away.