{"product_id":"dualcomp-rear-big-brake-kit-356mm-4-pot-calipers","title":"Dualcomp Rear Big Brake Kit 356mm 4-Pot Calipers","description":"The Ksport Dualcomp Rear Big Brake Kit is an advanced braking solution engineered for performance driving, specifically for the BMW E60, E61, and M5 models. This system is designed with drifting and rally racing in mind, featuring a unique Dualcomp caliper setup. This innovative design employs a single 4-pot caliper, intelligently split so that two pistons manage the primary foot brake function, while the other two independently operate the handbrake system. This dual-circuit capability ensures robust performance and control under demanding conditions.\n\nConstructed from a solid billet of aerospace-quality aluminum, the lightweight forged one-piece calipers offer superior strength and durability, eliminating potential weak spots found in cast or welded designs. The calipers are equipped with aluminum pistons, high-temperature seals, titanium brake pad retainer clips, and stainless-steel wear plates to ensure consistent operation even under extreme track temperatures. The opposed-piston design guarantees even brake pad grip and wear on both sides of the rotor, contributing to longevity and performance.\n\nThe kit includes two-piece floating brake rotors measuring 356mm in diameter and 32mm in thickness. The rotors feature 6061-T6 aircraft-grade aluminum center sections that act as effective heat sinks, drawing heat away from the braking surface and significantly reducing the likelihood of warping. Ksport offers both cross-drilled rotors, recommended for daily drivers for their cooler running characteristics, and slotted rotors, ideal for track applications to help dissipate heat, dust, and gases more effectively.\n\nIncluded as standard are SC5 Street Pads, designed for optimal performance in street and occasional track conditions, offering reduced dust and noise. For those seeking maximum stopping power on the track, an upgrade to RCI Race Pads is available, though these are not recommended for street use due to their high operating temperature requirements. The kit also comes with DOT-compliant stainless-steel braided brake lines, which prevent line expansion under pressure, resulting in quicker pedal response and a firmer pedal feel compared to stock rubber lines. Customization options include a wide range of caliper colors and premium center bell upgrades, allowing enthusiasts to personalize their vehicle's aesthetics and performance. All Ksport Big Brake Kits are made to order and are non-refundable.","brand":"Ksport","offers":[{"title":"Default Title","offer_id":52868438819128,"sku":"BKBM111-445CO","price":3439.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687987006.jpg?v=1787914174","url":"https:\/\/store.motormia.co\/products\/dualcomp-rear-big-brake-kit-356mm-4-pot-calipers","provider":"MOTORMIA","version":"1.0","type":"link"}