98 Catback on a 95?

I think the 98 catback would interfere with the 95's rear suspension. The 98 has IRS and the 95 doesn't. I think thats the reason the 95's exhaust goes over the rear axle. I could always be wrong though, which my wife reminds me of often :shrug:
 
I've read that the difference for the 98 Mustang is in the hangers as well.
Flowmaster advertises their catbacks for 94-97 5.0 and 4.6 GT Mustangs.

Should be able to cut off the hangers from the pipe side and have them rewelded in the correct orientation.
 
Only thing different is the tailpipe hangers. I know this due to buying a 98 cat-back for 96. magnaflow tails pipes comes with universal mountings. order them now and save yourself the headache