Hi everybody, I have an E90 M3 and I'm looking to get a lil more power out of it excluding s/c and turbos bc that's obvious, my question is would cat less headers, cams,intake and a remapped ecu do the trick? Looking to get like 30-40HP(more would be nice also
) lol more out of it. I did a search and couldn't find anything specific sorry if I made a thread for no reason.. Thanks in advance