the Remus has that extra turn and extra pipe than the dominator, the dominator just seems to get the job done better and more efficiently. Had mind on for 600 miles and love the sound with the stock "muffler"(which doesn't really seem to be a muffler). Don't think it needs to use the two mounting supports as it doesn't really weigh much at all compared to the boat anchor BMW resonator box(that appears to be the actual muffler). Can't, for the life of me, figure out why BMW would put that big mud catching boat anchor on these bikes and take away that fantastic sound. The dominator doesn't drone or sound obnoxious at all, just seems like that's how it should be.