How much more, and how bad do you want it? There's heaps that can be done!
1. Reduce weight (Chassis)-Carbon fibre wheels and rotors, mirrors etc
(Engine)- Titanium Conrods, 500gm lighter than the
stock rods.
- Lightened Flywheel
2. Performance - Cam grind
- Match-port & Flow-test Head
- Hi - Comp Piston
- etc.....
Alot of work and very costly, are you sure you really need more Hp? You do realise your riding one of the quickest bikes on the road already don't you? If your going to go that far yourself you would be crazy not to invest in a Power Commander! http://www.kneedraggers.com/details/Dynojet_Power_Commander_III_USB_Ducati_1098--638284.html