Procomp Rear Big Brake Kit

The K-Sport Procomp Rear Big Brake Kit offers a significant upgrade in stopping power for your BMW E39 5-Series. Constructed with lightweight forged one-piece calipers, this kit utilizes aircraft-grade aluminum for unparalleled strength and corrosion resistance. The calipers feature aluminum pistons, which offer better heat resistance and ensure uncompromised operation, even under demanding use. The opposed-piston design promotes consistent brake pad wear and caliper rigidity. Furthermore, each caliper is equipped with high-temperature seals, titanium brake pad retainer clips, and stainless-steel wear plates for enhanced durability. The kit includes two-piece rotors, available in either drilled or slotted designs, to minimize weight and maximize fade-free performance. The lightweight center sections are crafted from 6061-T6 aircraft-grade aluminum, reducing rotational mass for quicker wheel response. This two-piece design also helps prevent rotor warping caused by heat buildup. The rotors are heat-treated and balanced for optimal performance. For daily driven vehicles, cross-drilled rotors are recommended for cooler operation, while slotted rotors are advised for more track-focused applications. The standard kit includes (2) forged, monoblock aluminum calipers, (2) lightweight two-piece rotors, (1) set of SC5 Street Brake Pads, (2) stainless steel brake lines, and all necessary mounting components and hardware. This kit is specifically designed for the BMW E39 5-Series, including the 525i, 528i, 530i, and 540i models, and is designed to work with OEM handbrakes.