I would guess just uninstalling the uppipe itself would be a Huge PITA! But thats just a guess. The rest should be no problem. Maybe keep the stock uppipe and decat it. That would probably be the best bet if you want to make it easy to go back to stock appearance. I feel for you though. I've haven't done anything that is hard to change back to stock just cause of the dreaded warranty issue. Theres a lot I want to do but I want to wait until the warranty is near up.