The Std C6 uses 12.80 rotors w/ dual piston calipers, With improvements over the Std C5 conversion the std C6 conversion requires 17 inch wheels and offers updated calipers that are stronger in the bridge and also have redesigned rotors.
C6 Complete kits are fitted with:
C6 dual piston calipers
Ceramic brake pads
STD caliper abutment brackets
New Caliper & Abutment hardware
Replacement type rotors
Banjo bolts with copper washers