I have seen some dyno charts and the stock busa is around 153hp. The Hindle race is around 157hp. The BDE Hindle gen 3 is around 166-168, although I did see one graph run 171 but all bikes differ. For example, I had a 96 GSXR 750 run 119hp bone stock when piped and jetted bikes were not that much. Food for thought. P.S. I opted for the $500 Hindle it will be dyno tuned soon I let you know.