back then I had stock 17 ZR1 wheels with the c-5 brakes, and they fit great.
now I have C6 wheel 18's in the front, 19's in the rear, so the C6 Z51 fit.I belive that new rotor is 13 inch and needed an 18, C6 Z06 next
Its funny because 4th gens have the same exact brakes as a c-4, so my dinky little stock rear brakes look so darn funny with that 19inch wheel