Hey there,
I originally had this on my VStar 1100. It is kit 9011-11. It has a standard plug-in pigtail. No modification to the wiring needed. A bit of "Dremel artwork" is needed on the housing though, and I noticed on the website that it looks like you have to buy the whole taillight assembly (including lens). When I bought mine they sold the board separately and you replaced the guts of your taillight (minor work). It was a lot cheaper back then. I guess now you would have to buy the whole thing and remove the board? Looks like it's just screwed down with 2 screws.
I tried to take some pics a while back and they turned out bad. I guess LEDs don't photograph too well, despite the fact that I kept telling them they looked marvelous...
Anyway this is definitely a worthwhile mod.