Procomp Rear Big Brake Kit 356mm x 32mm 4-Piston Caliper

The Ksport Procomp Rear Big Brake Kit is engineered to provide the ultimate in stopping power for your BMW E60/E61 M5. Constructed with lightweight, forged one-piece calipers made from aerospace-quality aluminum, this kit offers unparalleled strength and resistance to corrosion. The calipers feature an opposed-piston design for consistent pad grip and wear, along with high-temperature seals and aluminum pistons for reliable operation. Cross-drilled rotors are recommended for daily drivers as they tend to run cooler, while slotted rotors are better suited for track use due to their ability to dissipate heat and gases. Standard equipment includes SC5 Street Pads, offering optimal braking performance for street driving with reduced dust and noise. An upgrade to RCI Race Pads is available for those prioritizing extreme track performance. The kit also features D.O.T. compliant stainless-steel braided brake lines, which prevent expansion under pressure, leading to quicker pedal response and a firmer pedal feel compared to stock rubber lines. This kit is made to order and is non-refundable. Customizable options include a wide range of caliper colors, from standard finishes like orange and black to premium high-polish and custom anodized options. Center bell upgrades, such as Titanium or Twin Color Anodized bells, are also available for further personalization.