Official figures from distributors say "4 more bhp on the rear wheel". On the rear wheel.. UCE 500 delivers 23bhp or so. I think with the bigger throttle body, hot cams the bike will clock figures close to 30 BHP.That looks like a more practical figure to go with!! 35+ BHP, I doubt. Unless, they are fully over-hauling the motor with hotter Cams, a ported Head and much more stuff like that!!