Hello first time posting so forgive me if I miss something here. I got a pair of pacesetter LT ceramic headers on a screaming deal and want to try to keep my stock y-pipe and cats. I've heard of this being done but I would like to ask this forum for potential thoughts. Right now my rig is a stock 04 tahoe 4x4 with a 5.3 v8. I'm worried about if I go catless about the future drivability of it, since it's my daily driver. That and I dont exactly have the dough to go and get a tune if I go catless. Thoughts? Any help is appreciated.