I am going to be putting a UPR catted x pipe on my 2000 GT and was wondering if I was going to run into any problems when installing it. My first question is will I need MIL eliminators if im running cats? Second is I have a Saleen body kit with the center exit exhuast will the x pipe still bolt right up or am I going to have to do some custom work? If anyone has put the x pipe on with the center exhaust could you let me know if it was easy and bolted right up?