i have a 95 gt and i gutted the front two cats and had the muffler shop make a 2.5in. piece to go to the mufflers so the two front chambers are only there, this made my car sound a lot louder when your on it but really quiet at idle, it also has a very deep sound to it with 2 chamber flows/2.5in tail pipes, with stock headers, my car obviously doesnt pass the emissions cause i have NO cats but i would think it would pass cause they sell the aftermarket ones with only two.
|