Okay got my new exhaust all finished up yesterday evening. Used a factory eclb duramax exhaust for the piping, aero turbine 3535 muffler, 5" black chrome tip, and lots of creative angle cutting and welding.
Stock flange cleaned out and ready for the 3.5 pipe
All the pipe pulled down for the final time and welded finally, had to make one exhaust hangar on the rearmost section of pipe
I did use a clamp to put the exhaust tip on after it was welded to my adaptor, just thought it would look cleaner than a bunch of welds back there, can't see it unless you crawl completely under the truck anyways.
I have more pictures if anyone wants to see a specific spot of the exhaust...
I would equate the sound to that of like a Borla, it really has a nice powerful sound, not too obnoxiously loud, but loud enough you know it's not stock, I'm really pleased with it, and from the little freeway driving I tried there doesn't seem to be any drone either.