johnny5

Okay this is for people who have tampered with there exhaust systems. First off, is there a company you would recommend on replacing our cats with High Performance Cats or is this not even worth doing? I would still like the car to be smog legal of course.

Second off, does anyone know what the flange is we use after the cat and before the resonators? Is it a 2 bolt style oval shape flange or a 3 bolt triangular style flange?

Thanks.