Anybody have a Dr. D on their bike? How is it? The price is very attractive. The stainless/aluminum system is like $500, I might even be able to get it for less through a local shop. I am also interested if anybody is running the quiet core? If I got a Dr D system, I would like to be able to run it with the quiet core all the time, as one of the main objectives to purchasing a different exhaust is to keep the noise down--some of our races here are very strict on sound levels. Anyway, if you got one, lemme know what you think. Thanks!!!