Just read a post about a cherry bomb being put on as a dual in dual out. Why diddnt i think of that. What better way to get rid of that p.o.s y pipe then just get the phuk rid of it. Any one here done that instead of a new y pipe. Im in the process of getting a new extreme to swap w my gibson super truck that rusted out. Hmmmm. Dual in dual out cb extreme comin out under the passenger door. Can you say scream!!!

 

I can say drone! Lol

 

I would incorporate some sort of mid-pipe in there, x or h. I believe you may 'have' to for backpressure reasons, but that may be me talking outta my a$$. IMO though, I would put a midpipe in the scheme of things, mainly because it'd sound pretty badass!

 

yeah you cant just run individual pipes back to the muffler. you need an x or h pipe anytime you're doing true duals. In the case of these trucks, it has to be an H pipe to work correctly. The x pipe has an advantage if the lengths between headers and x-pipe are exactly the same on both sides. This isnt possible because of the design of the underside, so an H-pipe is your only option if you're going true dual

edit: on that note, if you're going true dual, just go go with 2 seperate mufflers. It'll sound a lot better and have better flow. Twin SISO is the way to go

 

so as long as there is some sort of cross over before the muffler ill be fine??? lol i dunno sounded like an awsome idea at the time

 

yeah you need an h-pipe between the muffler and exhaust manifold