8-Piston 421mm Big Brake Kit with Orange Calipers

This sophisticated, bolt-on solution integrates advanced brake technology to significantly reduce brake fade and continuously cool the brake pads during heavy use. The kit features an extreme lightweight SuperComp caliper, machined from a solid billet of aircraft-grade aluminum for exceptional strength and corrosion resistance. The calipers utilize a one-piece construction and a differential bore configuration with larger pistons than Ksport's ProComp calipers. Aluminum pistons, high-temperature seals, and stainless steel brake pad wear plates are standard, ensuring uncompromised operation even under extreme heat. The opposed piston caliper design enhances pad wear and caliper rigidity over OEM systems, while the included stainless steel brake lines prevent expansion under pressure. This kit includes 2-piece floating rotors that reduce rotating and unsprung weight, while also preventing warping from thermal stresses. The specific rotors measure 421mm in diameter and 36mm in width, featuring a drilled surface finish for improved cooling, recommended for daily driven vehicles. The 8-piston calipers come in a vibrant orange finish. This specific kit is designed for the BMW 2012-2015 F12 6 Series 640i and 650i Convertible models. It expressly excludes xDrive models. Always confirm fitment details, including bolt pattern, diameter, width, offset, and hub bore, before purchase to ensure compatibility with your vehicle.