It's a 2 1/2" exhaust I did myself. Everything was ordered from JC Whitney, except the H-pipe and collectors which are from Jeg's.
Basically, the pipes come 18" off the collectors into the H-pipe and then into the 12" glasspacks. Then on either side its goes into 3 mandrel bent 45 degree elbows, a 50" straight and two more mandrel 45 degree elbows out the rear.
I just got all the 45's today and cut them to fit. Tomorrow I'll weld/clamp them all together. For a while I just had it put together up to the glasspacks which exited right behind the cab because I considered running them out in front of the rear wheels.
But the reason I bought 12" glasspacks is because I wanted loud and so loud is what I got. So loud, in fact, I decided to run them all the way out the back.
