I assume you are fitting aftermarket cans, yes ? Map 2 just ignores the lamda sensor readings for non cat exhausts so the bike is not so lean on a race can.
Heard of a few people switching in stock form in the belief it is a race map over a road map but it's not it just makes the bike feel stronger because it's not constantly being leaned out for emissions laws.
If you've got some miles on your RSV, its not a bad plan to have check the throttle body syncronization while they've got the Axione attached. BTW, US dealers may also have Aprilia adaptors & software for the Revolution system used with other brands...