StopTech Sport Slotted Brake Rotor (Rear Left). This is a single high-performance replacement rotor designed for superior braking performance. Features: 126 Series Sport Slotted design for improved heat dissipation and gas venting; premium E-Coated finish to prevent corrosion on non-friction surfaces; direct OEM replacement fitment. Specification: Position - Rear Left, Outer Diameter - 324mm, Type - Slotted. Part Numbers in this series: 126.44105SL (Left), 126.44105SR (Right). Note: This item is sold as a single unit.