C5 Corvette: PBR twin 40.5mm piston floating front calipers, Ø325mm x 32mm front rotors. Requires Ø17" wheels minimum.
C6 Corvette: PBR twin 40.5mm piston floating front calipers, Ø325mm x 32mm front rotors. Caliper is ~25% more rigid due to additional material (.16 lb) across the bridge of the caliper, however wheel fitment is the same as with the C5(Z06) calipers. The C6 front calipers do not use an anti-rattle spring. Requires Ø17" wheels minimum.
C6 Z51 Corvette: PBR twin 40.5mm piston floating front calipers, Ø340mm x 32mm front rotors. Note that the pad abutment brackets are taller radially speaking to accommodate the larger diameter rotors. Requires 18" wheels minimum.
C6 Z06 Corvette: PBR M-Series 6-piston (Ø33mm) fixed monoblock calipers, Ø355mm x 32mm front rotors. Caliper uses a muti-padlet design with one brake pad per piston. Requires Ø18" wheels minimum with a lot of caliper clearance due to the overhang of the face of the caliper. Fitment templates can be downloaded
here.
Hope that helps.
Tobin
KORE3