{"product_id":"supercomp-421mm-8-piston-front-big-brake-kit-1","title":"Supercomp 421mm 8-Piston Front Big Brake Kit","description":"The Ksport Supercomp Front Big Brake Kit is engineered to deliver ultimate stopping power for your Volkswagen MK4 Golf. This extreme brake upgrade features massive 421mm x 36mm two-piece floating rotors and Ksport's SuperComp 8-piston calipers. The calipers are forged from aircraft-quality billet aluminum, offering exceptional lightness (just over 7lbs each) and heat dissipation, while their opposed-piston design significantly enhances pad wear and rigidity compared to OEM systems.\n\nIntegrating advanced brake technology, this kit dramatically reduces brake fade and continuously cools the brake pads during application. The two-piece floating disc assembly minimizes both rotating and unsprung weight, and crucially, prevents thermal stresses from warping the disc or cupping the braking surface. The unique slot design on the rotors reduces braking noise and expels gas and pad debris more effectively than conventional designs. Rotors are heat-treated and balanced prior to shipment for optimal performance. Cross-drilled rotors are recommended for daily driven vehicles due to their cooler operating temperatures, while slotted rotors are better suited for track use.\n\nStandard equipment includes Ksport SC5 Street Pads, which are NAOC ceramic pads designed for optimal performance in street and occasional track conditions, offering reduced dust and noise compared to race pads. For more demanding use, optional Ksport RC5 Race Pads (carbon metallic) are available. The kit also features D.O.T. compliant stainless-steel braided brake lines, which improve pedal feel and response. Customization options include a wide range of caliper colors and optional upgrades for the center bell and hardware. Due to the large caliper size in the SuperComp series, each caliper requires four brake pads.\n\nThis product is made to order and is non-refundable once the order is placed. Estimated lead times will be provided after order submission. Fitment is specifically for VW Golf\/GTI Mk4 models with 2.0L or TDi engines.","brand":"Ksport","offers":[{"title":"Default Title","offer_id":52869039685944,"sku":"BKVW040-971CO","price":5793.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687996661.jpg?v=1787916366","url":"https:\/\/store.motormia.co\/products\/supercomp-421mm-8-piston-front-big-brake-kit-1","provider":"MOTORMIA","version":"1.0","type":"link"}