ok i have a flowmaster american thunder cat-back system and was lookin into a pypes performance cated x-pipe i was woundering how much louder that would make my car and if you have any opnions on their products or any suggestions of a better cated x-pipe. i need the cats since i live in pennsylvania and need emisions and i dont feel like changin it off for the test once a year or else i wold go with the o/r pipes.
thanx,
Frank
thanx,
Frank