If you get the Hindle pipe, please let me know what it does for your Busa, and how it sounds. I had a Hindle on my V Max and it was a very nice system, what a great sound and increase in power! Made my max sound like a built small block chevy V8! I know the Busa will not have a sound like that because the Max was a V4 motor but Hindle makes nice stuff.
I have talked to Broc Personally. He has the hot set up for the Busa. Add a power commander II and hold on. His setup produces 8-15 hp. The Hindle system works. It has a nice deep tone. Thats all we sell at the shop I work at. You can get any exhaust system you want as long as its a Hindle