Yes a lot different. The '12 has some slots by the spars that allow splash/wash water in from the sides, easy fix. After the slide filter disaster on the prototypes, I think they were gun shy and were a little too conservative on the airflow issue. With a new '12 you even get Twin Air pre-filter inserts that you can add to the sides of the air box after cutting more holes.
Totally unneccessary, there is more than enough airflow without those and the slots closed up.
'11 Race is a nice bike, good luck. You have more exhaust options too.