Has anyone in the Duramax world done this? On my Cummins I put a Y pipe and an electric exhaust cut out in front of my stock muffler. I now have quiet and loud on demand. The cutout was the most expensive thing $200.90 after shipping, the Y-pipe came from JEGS (however you may have to make your own for the exact size of exhaust pipe you have) and then the labor (I didn't have the time or the sawzall). I originally had a 3" (the biggest that he could bend) that was about 4' long pipe leading it out from under my bed (don't do that)(go bigger), so I took it off and I would like to put a bend and a tip on it to get the smoke out from under the truck. Anybody else thought of this?

23 hours and not even an opinion?