Man they are pricey, it looks like they sell the calipers for 1200 a piece. So with that kit it seems the rotors are free at that price. I also see the caliper model they use is the ZR34, but they have a lot of variations of it. Here's a link to the variants:
http://www.performancefrictionbrakes....php?ID=34.323 I wonder if the pistons have dust covers and how thick our stock rotors are?