Well I am getting a early christmas tommorow. I ordered some stuff last monday and thanksgiving backed up the shipping and most of it should be here tommorow. I got a set of edelbrock ceramic coated headers, 2 high flow carsound cats, 2 magnaflow mufflers, 21LB injectors, 1.7 RR's, transgo shift kit, TCI deep tranny, 1-Kicker solo baric L7 15" sub, 1-Memphis 1000D amp, and I also ordered a new end for my skyjacker trac-bar from don that replaces the heim end and puts a bushing on there so now the trac-bar shouldnt be popping all the time. I plan on running 2.5" pipe to the cats and then from the cats to the mufflers 3" pipe. Hopefully I will be able put the headers on monday night and then go to the muffler shop tuesday morning and have the rest of the exhasut work done. Would it be ok to drive the truck to the muffler shop with just straight headers on it? THat way incase the y-pipe dont match back up with the headers perfect I can still drive it up there?