the exhaust i got for my car is a magnaflow catback....its got 2.25" mandrel bent piping and a straight through muffler with about a 4 inch tip....it doesnt sound like a bunch of pissed off bees like many other exhausts.....the sound is a deep rumble at low RPM and sounds realy nice at high RPM.....plus i only spent 320.00 on it........i got it at hottexhaust.com