99-04 off road x-pipe

I need help on how to install the x pipe, i have easily removed the back end from the cat back, but unbolting it from the headers looks like it will be tough. Is there any kind of advice anyone has on the easiest way to do it with simple hand tools or maybe an air wrench. Any help would be great.

long extensions. I put an off road xpipe on my 01 GT. the starter side is a little bit of a pain, but not that bad..