4-Piston Rear Caliper Kit with 356mm Rotors

Ksport big brake kits provide the ultimate in stopping power for your vehicle. Integrating new brake technology into the design of the kits allows for a kit that highly reduces brake fade and continually cools and refreshes the brake pads surface under braking. This specific kit features an extreme lightweight one-piece caliper that is CNC machined from aircraft quality billet, weighing just over 5lbs each. It includes machined-in protection grooves for the bridge tubes, aluminum pistons, high-temperature seals, and stainless-steel brake pad wear plates. The opposed piston caliper design greatly improves pad wear and caliper rigidity over the OEM design, while the stainless-steel brake lines prevent expansion under pressure. The Ksport Procomp kit utilizes a 2-piece disc assembly to reduce rotating and unsprung weight. Many applications offer a floating disc option to prevent thermal stresses from warping the disc or cupping the braking surface. The unique slot design on the rotor reduces braking noise and expels gas and pad debris faster than conventional designs. Every rotor is heat-treated and balanced before shipment for optimal performance. Cross-drilled rotors are recommended for daily driven vehicles due to their cooler operating temperatures, while slotted rotors are better suited for track use. This rear big brake kit is specifically designed for the 2004-2005 Honda Civic Si, offering a sophisticated bolt-on upgrade to enhance brake power under sustained high-performance conditions.