StopTech Sport Rotors (Drilled & Slotted) are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved stopping power and cooling compared to standard rotors. This specific part (127.44141L) is for the Rear Left position. Features include a unique cross-drilling and slotting design that aids in heat and brake dust dispersal, prevents pad glazing, and improves wet weather response. Finished with a black e-coating on the non-friction surfaces for long-lasting corrosion protection. Component list: 1x StopTech 127.44141L Drilled & Slotted Brake Rotor (Rear Left).