The Dynapro Radial Asphalt Sprint kits are a further evolution of a proven design from Wilwood’s 40 years of engineering and producing the best open wheel braking systems. Dynapro Radial 4 piston calipers have full 4.80 square in.es of area for increased clamping force. Kits are offered with GT 36 curved vane Spec-37 for high heat durability and BP-40 high friction racing pads. Kit come complete with caliper, brake pads, caliper mounting brackets, caliper mount bolt kit, rotor and rotor mounting hardware.