Hey guys, just purchased my first "new" truck last week for my 22nd birthday. I've already caught the bug for upgrades. I am picking up a factory 6.2 exhaust on Sunday. As far as bolting up to the factory y-pipe, will I have any issues? I wouldn't think so since both are factory exhausts and for same truck model, but it's better to ask now than have the stock exhaust already off and run into problems. I know I should net a little extra power, but I am also chopping off the flapper valve and replacing the stock muffler with a 3.5" Borla XR-1 and leaving the resonator, for now. Future plans will be 1 7/8 headers and y pipe. Anybody have a similar setup with the 5.3's? As far as swapping over to the 3.5" exhaust? I know a lot of aftermarket exhausts are 3.5" to 4" but are pretty pricey. I think for spending $100 on the factory exhaust, $200 for muffler, muffler/valve chopped off, it should be a decent upgrade