The Pro+ system was designed specifically for the DSE Speedray front suspension and features the 2-piece 6-piston, 6P caliper mounted in a leading position on a 14", 2 piece slot, drill, zinc plated rotor. The 6P caliper has D.O.T compliant dust and weather seals and uses the popular D0731 pad type. Rotors are pre-assembled with NAS high grade stainless hardware and all mounting brackets, stainless braided hoses and hardware are also included. The 14" Pro+ is designed to fit most 18” or larger wheels. Fits 1963-82 C2/C3 Corvette w/DSE Speedray Front Suspension