Just send them a message in italian asking a lot of info... from what I can see in the italian e-bay they use a kind of plug (they call it DB killer) that can fit easy to reduce the noise at std level. They are writing that in this way is omologated in Italy as relevant the sound (which means has probably the same level of noise of a std Ducati can) but of course the problem is that is not catalityc anymore. Without the DB killer instead is noisy, track only version and termi noise style..
I asked dyno results ..if any... and a lot of other question..
Also as I wrote to ask my friends to find out about these e-bay cans, as in Italy right now ...the "buzz" is that the best race can for the 999 is the HPE instead, which if mapped with a PC give more HP than a Termi.
http://www.tubistyle.it/HPE/default.htm Let's see if they (the e-bay seller) write back quickly...