I believe the dual in/out 28 incher has a built in x pipe !

 

run the stock muffler... if u want to put 2 22" ur gonna run out of space down their.. lol..

 

where at in Texas are you and what kind of truck? im selling a complete exhaust from collectors to muffler with a 5x11x22 magnaflow with a cutout pipe already installed and at idle and part throttle its damn near as quiet as stock. all youd need is a set of headers with 3" collectors and the electric part of the cutout and youd be good to go. pm me for info

 

Big magnaflow 24" prolly

 

I run a single magnaflow 30" and its pretty tame. Gets louder when the WG opens but nothing crazy.

 

South texas... but i'm still running the stock manifolds :/