Good evening! I have no doubt that my questions been answered in obe of the thousands of threads on the site but here goes anyway! I have a 56 plate clio 197 and the exhausts blowin its nut off
so my question is what performance systems do you guys use and how do you get around the 2nd cat? (been under mine for the first time tonight and until today i didnt even know there was 2 lol). Thanks in advance