Started installing my Hella HID's on the '13.
Believe it or not, I managed to get both ballasts installed in the upper fairing! The left side is forward of the glovebox, behind the turn signal. Lots of room there. The right side I had to swear at it some but managed to get installed forward of the battery with the help of a pry bar and a bucket of KY.
Bonus, the front vents beside the headlights will funnel cool air directly at the ballasts.
The rest is easy, bolt up the lights, mount the relay and hook up a couple of wires.
The bike will look like the Millenium Falcon with the Hella's mounted on top of the light brackets, and the LR4 LED's mounted below. I'm pretty sure when I turn the lights to 11, 747's will flash their lights at me.