Jcarter, instead of cat backs and tunes if you want your pick up back after tires, the only right way to do it is to regear the truck. Throw some 4.10’s in the axles and buy a cheap programmer to reset the speedo.
All a tune and exhaust is going to do is burn up your transmission faster at this point if you’ve put bigger tires on it ( I know you didn’t go very big)
Regearing is a crucial step to a lift and bigger tires that most don’t think bout or want to spend the $$ on. And you’ll pick up some mpg’s since your motor isn’t working as hard... even when towing.