Quote:
Originally Posted by chris01
a 4" inch cat back system has given a lovely sound to mine  sounds excellent under acceleration and not loud at all when just cruising, that and a viper pipercross induction kit, sound awesome together and have given my car an extra 10bhp love the way it pops and crackles aswell |
4" cat back - are you sure its not just a 4" tailpipe, as in 4" back-box-back?