The only cat-back that I know of is the Magnaflow. It doesn't sound raspy if that's what you're wondering about. As long as the exhaust has a good mid-pipe resonator or two with a muffler, then the raspy sound should be very minimal or eliminated.
Quote, originally posted by scherry2 »no.True - Scherry2's catback sounds sweet... a low rumble with a hint of a 4cyl hum. Not that pissed off bee in a coffee can rattle.