I have a custom cat back exhaust that I had made for my Vortec Max. It has a big dual in dual out Magnaflow muffler in it and stainless magnaflow tips that exit the rear together just like the Viper Ram Trucks. I am going to sell my truck and am willing to trade someone for a stock muffler as long as it is the dual in/out for my 6.0. Plus a little cash. This is a nice setup. Will post pics later.