{"product_id":"supercomp-caliper-kit-w-2-piece-floating-disc-1","title":"SuperComp Caliper Kit w\/ 2-Piece Floating Disc","description":"The Ksport Supercomp Rear Big Brake Kit is engineered to provide the ultimate stopping power for your Mercedes Benz W221 S-Class. This sophisticated bolt-on upgrade integrates advanced brake technology to dramatically reduce brake fade and continuously cool the brake pads during operation.\n\nThe centerpiece of this kit is the extreme lightweight SuperComp caliper, forged from aircraft-quality billet aluminum. It features a differential bore configuration with much larger pistons than standard calipers, and an opposed piston design that enhances pad wear and caliper rigidity over OEM systems. The caliper boasts aluminum pistons, high-temperature seals, titanium brake pad retainer clips, and stainless-steel brake pad wear plates. Each caliper requires four brake pads due to its substantial size.\n\nComplementing the calipers are the standard 2-piece floating disc assemblies. These reduce both rotating and unsprung weight, while mitigating thermal stresses from extreme heat to prevent disc warping or cupping. The rotors feature a unique slot design that minimizes braking noise and effectively expels gas and pad debris. The kit comes standard with cross-drilled rotors, ideal for daily driven vehicles as they tend to run cooler, though slotted rotors are available for more track-oriented use.\n\nThis kit includes Ksport SC5 Street Pads, which are NAOC ceramic pads designed for optimal performance under street and occasional track conditions. These pads offer reduced brake dust, noise, and rotor wear compared to race pads, with an average coefficient of friction between 0.46 and 0.53. Optional RC5 Race Pads (carbon metallic) are available for extreme track conditions but are not recommended for street use due to their high operating temperature requirements. The system also incorporates D.O.T. compliant stainless-steel braided brake lines to improve pedal feel and response.\n\nThis product is made to order and is non-refundable. It is specifically designed for the Mercedes Benz W221 S-Class models from 2006-2013, including variants such as the S550, S600, S63 AMG, and S65 AMG, across various engine displacements (M273 5.5L, M275 5.5TT, M156 6.3L, M275 6.0TT, M278 4.6L).","brand":"Ksport","offers":[{"title":"Default Title","offer_id":52868573102392,"sku":"BKMD170-863CO","price":4334.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687990616.jpg?v=1787915219","url":"https:\/\/store.motormia.co\/products\/supercomp-caliper-kit-w-2-piece-floating-disc-1","provider":"MOTORMIA","version":"1.0","type":"link"}