I have had Paul Yaffe Phantom Pipes, Trotta D'2, Vance and Hines 2 into 2's, and Martin Brothers Medustas. I didn't have baffles in any of the pipes and I would have to say the Martin Brothers were the loudest, but all of them were f-ing obnoxious, except for the Vance and Hines. Vance and Hines are just an all around good pipe, but alot of people have them. I'm not a big fan of blueing pipes, so I always get heat shields or go with ceramic coating. Black ceramic is a pain in the ass, because any little scratch shows up. My favorite looking pipe is the Yaffe Phantom, but not impressed with how thin the pipes are, not a very heavy pipe and the heat transfer was exessive on my bike. I have a set on Trotta D 2's I'll let go for $150.00 but they need to be re-chromed or ceramic coated. The D-2's go for about $900 bucks.