I drive a e46 318 M-Sport and im looking at changing the exhaust system as the standard one is abit small and lifeless.
At first i was just looking for a one sided system with either double tips or a single oval tip. but then i came accross inside performance who sell a m3 style quad system with a M-Sport diffuser to fit, i emailed them to get pictures off how the system fits round the spare wheel and they refused to give me them, but after some forum searching i came across some.
What i would like to know is, by having a quad system would the engine lose much back pressure resulting in a drop in power? and is this system abit m3 wanabe-ish, i think it looks very oem to be fair, but what are your oppinions on it?
heres some pictures off it: