have to claim ignorance on the baffles...I ordered from "Dream Bikes of Atlanta" and had them installed at the shop. Bike sounds amazing. I was told I picked up a few HP, but I tend to be a "putter" so I'm not sure I can tell in improvement in HP.
I went on a run this weekend and it sounded like all I heard were the bikes around me and not my own. I think I will go ahead and order the SE Pipes, they certainly can't be any quieter then the ones I have.