Project Mu SCR-PRO high performance brake rotors for late model Japanese vehicles are designed specifically for high output tuner vehicles. SCR-PRO rotors are constructed as a two-piece rotor design with Black Chrome finish for extraordinary looks. SCR-PRO rotors are developed from super tough FC Cast Iron Material and are heat-treated for reliability, durability and thermal stability under aggressive driving. The affixed bell housing is made from a billet aluminum alloy for strength as well as reduction of unsprung weight. Project Mu SCR-PRO rotors are available as front and rear replacements including vehicles with the factory Brembo calipers. They are manufactured from the factory featuring a slotted surface to facilitate better pad wear and maximize cooling and braking performance. SCR-PRO rotors also feature a specially designed internal vane to improve heat dissipation from the rotors. Sold as a Pair.