OK im considering a new cat back.... my tips are a little scratched. Its a flowmaster cat back. Im looking in an SLP loudmouth cat back. I Love the tips, but my question is this- my buddy has it on a basically stock GT, does anyone have expirence with a modded (HCI) 5.0 with some slp loudmouths??? or a sound clip with a 5.0 with HCI? i cant find anything or a sound clip? much thanks