I have a dual in and out muffler but the two y-pipes (for lack of a better term) are completely different in length. I was wondering if installing an x-pipe would benefit me in any way or this that exclusively for true duals?

 

dont know how an x-pipe would wotk for you, its really set up for a true dual. the x-pipe is there to even out the exhaust on the true dauls. where as you donot have to worry about that because yours merge anyways.
so you want see anything IMO horsepower wise. but you will be 1/4 setup for a true dual setup.
guys correct me here if im wrong but this is my .02

 

I think you're right but i had to ask

 

Huh? You mean after your muffler it re-connects into a single pipe?

 

no it's the gibson dual swept side thing cat-back....two pipes exit behind the passenger side tire. I understand corsa could be putting out a system for my truck pretty soon and will be losing this gibson crap soon enough.