difference between c5 and c6?

[jcal87]

I am thinking about buying some c5 zo6 brand new in box brake calipers for $175 a pair if that's a good deal? but whats the difference between them and the c6 and by the way i will not be putting these on my car anytime soon just trying to buy parts little by little. until i can get a nice subframe like dse or something comparable.