Caliper piston sizes are optimized for use with factory stock master cylinder, booster and ABS system. Specifications: Pro-System 375×28 rear rotor rings, hats & hardware 4 piston caliper – made in USA: • All Pro-System rotors are machined at our facility in Mooresville, North Carolina from specially formulated grey cast iron providing the best in thermal stability, friction coefficient and heat transfer characteristics. • Dyno-bedded rotors and pads • Precision machined and anodized aluminum hats and brackets • Fully floating rotor attachment with anti-rattle clips • Utilizes stock park brake • All kits are supplied with high performance brake pads. • Added value, most of our competitor’s kits have a similar cost but brake pads, anti-rattle clips and bedding are not included. However, these are all included with in a Pro-System brake kit.
