I'm wanting to put stacks on my 4x4 ext cab and i have a 4" downpipe and the splitter to the stacks.but where to i get the pieces from the downpipe to the bed? do i need to purchase a complete 4" system? Thanks

 

Just look around online. I just ordered what 4" pieces I needed to run mine out the side in front of the wheel (which is a stupid idea, the passenger rear wheel was always black).

It's really not to hard to find them, I believe I ordered some of it from Jeg's. Also found a nice generic brand 5" tip that was only like 25-30 bucks when all the others were 50 or more.

 

Thats how mine is setup right now.Hmm then i must be missing something cause i cant seem to find any.Im wondering if i can just get away with a straight 4" pipe all the way and maybe just kink a little where it goes past the t case.