Sorry to revive this thread, but I would like to know if you guys had to deal with the gap between the rotor stud holes by making a spacers for each stud.

I am looking at tracking the car at the end of this year and seeing I currently have to buy new full brake setup (mismatched rotors / caliper), I might as well go bigger instead of buying stock.

Was also contemplating the VR4 Calipers. Anyone track either?

Wilwood would be nice but too $$ to replace rotors.