Not sure about their kit but I know for sure Goodwins kit works mint.................If you combine their kit with the following you'll not only notice a HUGE increase in performance but a nice increase in mileage as well.
Got a Black Magic kit on mine haven't had much of a ride (6 miles)yet but it feels alot more racey that's for sure. Engages at 5200 rpm and holds at 8200 rpm. Pretty extreme...not sure I'll like it yet in the tight twisty's. Squeeze it and you're gone though....that I like.