The single injector modification is used to correct a fueling problem at small throttle openings specific to 1998-2000 996 Bipostos only. For more information go here:

http://www.fuelinmoto.com.au/

Scroll down the page to:

Ducati 996 Biposto 1998/9/2000

Ducat workshop manual says 112hp for a standard 996 at the crank. So I'd take a wild guess that the standard 109horses for a 916 is at the crank too. Clever me!:sing: I worked that out all by myself.......
So 107 at the wheel's gotta be pretty good for just open pipes, squish set and a fuel remap. Makes the Ultimap seem like a good idea, especially as it is set for the engine it is working for and can be changed to suit any engine mods that you make.
Hope this helps a bit Tony