go to albums-cpttuna mods. you will see a sample of waht I have done to all 5 cherokees in the family. I get 2" OD stainless pipe from our local recycling center. I purchase a borla 2.25 in and out ss muffler and cat from SUMMIT Racing. I got the muffler shop man to cut the old system off as per the pic and make my new system. when done he welds it all together. It cost me 45.00 at the muffler shop, about 225 at summit and 10..00 at the recycling center. Iam most satified or I would not have had it done 5 times.