REGUARDLESS of what any1 else says, i have the borla w/ orp on my car. the system sounds GREAT. it's not too loud by any stretch of the imagination and was a lot quieter then i thought it would be. the only down side is that the borla is a bit pricey. THAT BEING SAID, there is a GREAT warranty on the borla system. even now that i added my procharger, the system still isn't that loud, i mean with 8 lbs of boost it still almost sounds the way it did before i put the pc on it.