I already have equal length shorty headers and a bbk x pipe. I am replacing my catback setup for a few reasons:
Mufflers on it are no name garbage. They sound amazing when accelerating, but drone like mad at about 40 mph
Tailpipes are old, dinged up, and caked in rubber.
When we did the catback, we were attempting to sell the car (my dad had it and wanted to make a turbo LS drag monster but got bored of it) so we had some garbage muffler shop do the install, so it's uneven and leaky.