I have no idea, but my 600 CBR has coped with his restriction and I think they are very similar (if not the same) engines, just different tuning levels.

You'll be going up and down the gears more to keep in your power band, and have to face being left in the dust if anyone on an unrestricted bike decides to give theirs the beans (Mikey can take off and leave me like I'm standing still when we're out ;D). But lets face it, you're always gonne have that with only 33bhp!