Hi,
I can´t verify the parts by checking part numbers etc., because in my 2004 and 2006 parts manuals I can´t find any titanium valves.
I can imagine because of the lower weight of the titanium valves that your engine could rev quicker,
but I´m not sure if the top end life expectation would be the same.
KTM had some probs in a modelyear with the titanium valves, they failed earlier than normal valves.
The reason is to be found in the material of the valve guides.
From my knowledge now, I´m not sure if Husaberg has/had no problems with that.
But if you want to change to titanium valves you surely have to replace also the valve guides.
greetings
hribman