I'll agree to disagree lol, YOSH has the $, the experience and the relationship with Suzuki to do all the R&D etc on any and all Suz bikes including i bet they had there hands on an 08 busa to do the testing and developement they needed. all do respect to BROCKS, HMF, MUZZY, they have accomplished great things in thier development and kudos to them, i just dont think you can beat experience, time and most of all $$$$$$$$ to put out an all around product like quality and performance, I have run YOSH forever and the sound, performance and quality out of my YOSH Tri-Oval Dual tip exhaust, I have seen no where, where they can touch it, and such a distinct sound it makes, my bros hear me come from miles away and are freaked out when i open her up and wind it out.