Check out race tech's website for info. It improves the dampening of the fork by using a different and more complex way of oil flow through the fork. The emulators replace the standard dampening rod in function. The can be adjusted to personalise the dampening level as well. Can't explain it as well as they can but.
It's worth it to me, but it's very personal. The chain gang site had a group buy and made it economical as I had to get stiffer springs anyway due to the added weight of the luggage. It give me much more feel and confidence.
99% sure they will fit as the diameter of the forks are the same. Will probably need a shorter spring though. The emulators take up space which was previously taken up by the stock spring. With the emulators you can get a shorter spring. Not sure if there if a possibility of using the stock spring with a shorter preload spacer. Been a while since I've been in there.