1-Piece Aluminum Caliper

The calipers are precision-machined from a solid billet of aircraft-grade aluminum, ensuring lightweight construction, unparalleled strength, and resistance to corrosion. Each caliper utilizes aluminum pistons for superior heat management and reliable operation. The Procomp system features two-piece rotors for a combination of lightweight design, fade-free performance, and effective grip. The calipers themselves offer improved pad wear and rigidity compared to OEM designs, with rear kits featuring lightweight 4-piston aluminum calipers for 13" and 14" systems. Carbon steel caliper brackets, CNC machined for precision, ensure these larger calipers bolt directly to the OEM caliper bracket locations. The kit includes SC5 Street Pads, made from NAOC Ceramic material, which provide optimal braking for street and occasional track use, while reducing dust by over 50% and minimizing noise and rotor wear. These pads are effective in operating temperatures between 194°F and 1022°F. To further enhance performance and customization, the Procomp kit offers a choice between slotted or cross-drilled rotors. Cross-drilled rotors are recommended for daily-driven vehicles due to their cooler operation, while slotted rotors are suggested for track-focused applications. The kit also includes D.O.T. compliant stainless-steel braided brake lines, which prevent expansion under pressure, leading to a quicker pedal response and a firmer pedal feel than stock rubber lines. Ksport Big Brake kits are built to order, with an estimated production and delivery time of 4-6 weeks. This specific kit, the BKSB040-433CO, is designed for the Subaru Impreza WRX models from 2002-2007 and fits 2WD vehicles.