8-Piston Billet Aluminum Front Big Brake Kit

This kit features larger-diameter disc rotors and robust 8-piston calipers, designed to significantly enhance your vehicle's braking capabilities. Constructed from a solid billet of aircraft-grade aluminum, the 1-piece calipers offer exceptional lightweight strength and are resistant to corrosion. The aluminum pistons contribute to better heat resistance and smoother operation, while the opposed-piston caliper design ensures improved pad grip and more even wear. Reinforced carbon steel caliper brackets allow for direct bolt-on installation of these larger-than-OEM calipers without requiring modifications. The kit includes 2-piece rotors with aluminum centers, reducing rotational mass for quicker braking response and shorter stopping distances. This design also minimizes the risk of rotor warpage by allowing for more natural expansion and contraction. Additionally, the stainless steel brake lines are incorporated to prevent expansion under high temperatures and pressures, resulting in a more responsive pedal feel. The caliper seals are heavy-duty, built to withstand sustained high-temperature track use. This SuperComp Big Brake Kit requires a minimum wheel diameter of 21 inches (533.4mm) and features 421mm (16.6") outside diameter rotors. The kit is specifically designed for the 2015-2018 Subaru WRX models.