[JL8Jeff]

The Hooker cat-back doesn't really give you the ability to rotate the muffler because of the 3 bolt flange so the headers and y-pipe might be misaligned causing the I-pipe and over axle to be out of position enough to not allow adjustment. Did you try disconnecting the I-pipe from the y-pipe and see if you can get the muffler and tailpipes to line up? That might show you how far off the exhaust is.