Not sure if anyone else has put this on their Busa.... but jesus is it loud. Never heard of Boz Borthers and was a little skeptical for the price, but the sound is pretty solid. It is however the loudest exhaust I have heard on an SS. There is a good chance I'll be able to drown out the local choppers if need be, so that is always a plus lol. If anyone is interested in a video of it I'll upload one.