Yes the downstream on bank 1.
Called the shop I used and he said his first thing would likely be to replace the cat. But I'm still thinking that would only be a band-aid since the jeep only had 75k miles on it.
If it was mine i'd just buy a O2 fooler for about $20-30 and save a bunch of money on more unnecessary parts and labor repairs. They do work I have them on my Jeep because of high flow Cats.