These complete GREX brake kits are full competition spec system suitable for street use. Lightweight 4 and 6 piston aluminum calipers are stylishly protected by GREX gold hard anodized finish. Large lightweight GREX two-piece rotors use an anodized, duralumin bell housing to prevent rusting and scratching. The finest quality Earl Teflon lined stainless braided brake hoses are also included for maximum performance and reliability.