I put the Jagg on my 2014 RK after my 117" build because I have one on my 113" 2013 Ultra and it works so good.
I did have a wiring issue on the '14 that I didn't have on the '13. Jagg's instructions say to pull the hot lead off the rear brake light switch. I did that on the 13 and it works fine but when I tried it on the 14 I had problems. When the thermal switch closed, instead of turning on the fan, the brake lights came on and stayed on until the switch opened and the fan never did come on. I emailed Jagg and they're aware of this and are working on a solution.
I moved the hot fan lead to an accessory wire and the fan and brake lights work now BUT when the switch closes my gauge light (speedo/tach) goes off for a few seconds. My guess is that all of this is due to the CANBUS system but I don't know anything about CANBUS other than how to spell CANBUS. I haven't done it yet but I'm planning on wiring the fan directly to the battery + cable to see if that makes everything work normally. I'll probably do that this weekend and I'll let you know what happens.