I have the MAC 2.5" cat back system with the stock headers and H pipe up front. This is not very loud which is good most of the time, but I was hoping for some more snarl when I want to be more juvenile. The fit and finish was fine, I got mine from Mustang Warehouse also. Nice guys and they shipped the stuff quick and no shipping charges. If you have a sawzall and some good jackstands you can swap it out in a hour or two. Just make sure the ball socket for the tailpipe does not hit the axle BTDT and almost tore my brake line!
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