StopTech Sport Slotted & Drilled Brake Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. StopTech Sport Rotors feature a unique cross-drill and slot pattern for additional cooling and rapid expulsion of friction gases and debris. Includes: 1 x Rear Right Drilled & Slotted Sport Rotor (Part Number: 127.42079R). Features: Black E-Coat finish protects against corrosion, high carbon metallurgy (in most applications) for increased crack resistance, and improved initial bite.