is this worth doing my car has cargrapic sport cat in there 100 cell 200 cell???,is there more power and noise to be got from one of these or will the car run poor without cat? 964 rs with twin exhaust chip etc 305 bhp
hi mate, dont do the cat by pass, yes it will give you slightly more power but the noise and i like noise, is just to much, i know i did it, and regreted it untill i sold the car, they sound right either, it's your call though, all the best, mailey