1997-2004 C5 & C5 Z06 (JL9 & J56):
Front - 325x32mm rotor, 2-piston floating caliper
Rear - 305x26mm rotor, 1-piston floating caliper
2005-2013 C6 Base (JL9):
Front - 325x32mm rotor, 2-piston floating caliper (~25% more rigid than C5 calipers)
Rear - 305x26mm rotor, 1-piston floating caliper
2005-2013 C6 Z51 Performance Package (J55):
Front -340x32mm rotor, 2-piston floating caliper (~25% more rigid than C5 calipers)
Rear - 330x26mm rotor, 1-piston floating caliper
2006-2013 C6 Z06 (J56):
Front - 355x32mm rotor, 6-piston monobloc caliper
Rear - 340x26mm rotor, 4-piston monobloc caliper
Wheel clearance is a function of diameter and axial clearance between the face of the caliper and back of the spoke, or mounting pad thickness. You can download the fitment templates from our
Tech page rather than assume anything with respect to brake fitment since it sounds like you already have your wheels.
Tobin
KORE3