Thanks guys.  That's what I wanted to know.  I wasn't sure if it was a fitment issue with hangers and such or if it was just the rear bumper.  I knew my bumper was different and would have to be modified but I found a picture of a GT with the holes in the rear bumper and you are correct, it looked like ass.  My headers, x pipe and cat back should be here by wednesday.  If any one is looking for factory headers, factory catted mid pipe and a flowmaster cat back, I will have them off the car by tuesday.