This was very cheap to do. One of my buddies gave the Duramax exhaust off his 06 CCSB. $40 Bucks at a muffler shop and I was good to go.

It was NOT a direct fit for MY combination. The "hump over the axle was hitting the bottom of the bed so my exhaust guy heated it up and stressed it downward and that took care of it. I also had him trim down the tail pipe so it wouldnt stick out so far. The last thing was to cut the back side of the tailpipe hump and shorten it so it wouldn't hang down too far. He cut it a little too short, but its not that bad. The vid shows what it sounds like with my 212/218 hilift comp cam. Stock manifolds and cats.

 

omg that actually sounds pretty good for such a bargain.

 

yeah that sounds killer for a stock exhaust setup.