Yea, I finally got to push it past 3500 RPM yesterday.
In the past I've said that the best money I've ever spent on a bike was for the LED headlight/passing lights. Well. they are #2 now. The Fullsac Stage I and II are first!
The bike is WAAAY quicker that my 07 and even quicker than my 04 103. The torque never goes away, still pulling hard even when you hit the rev limiter which happens quick! Get the bike rollin, pull in the clutch, bring the RPM's up and drop the clutch and the front tire is off the ground! That's sayin a lot for a fat azz like me! Don't know how long the clutch will last with this set up.
Steve at Fullsac says the next step is installing a trike trans gear and one tooth smaller drive belt.

The sound of the 2" baffles with no packing is perfect for me! Quieter than Rinehart true duals. Slight rumble at idle and cruise speed, loud on hard acceleration!
Brian, go ahead and do this install on your 2011.5! 
If you had any balls, you'd drop the clutch from a dead stop and pull that wheel up. I thought you knew how to ride!

I (of course) like the sound of a black/blue color combo on the 2011.5 (shhhhhhhh, we're not supposed to know!), but, honestly (and no disrespect to you or any other '11, or '10 for that matter, owners), I was hoping for a little more creativity on the paint scheme than just a simple carry-over. We'll see ...
But if I get one, it sounds like I'm gonna have to up the ante a bit and not stop at the pipes/cams/head gaskets. And if I keep the SEEG, all bets are off! Can't have ya out-gunnin' me, ya know!