StopTech Slotted Sport Brake Rotors are premium one-piece direct replacement brake discs for your factory braking system. The 126.47039SR is a Right Rear slotted rotor designed specifically for Subaru models with factory Brembo 2-piston rear calipers. Features include: 1) Slotted design to improve braking performance by wiping away debris and preventing gas buildup. 2) High-quality metallurgy to resist cracking and warping. 3) E-Coated finish on non-friction surfaces for superior corrosion resistance. This is a single component (1 unit). Compatible part numbers: StopTech 126.47039SR.