StopTech Sport Rotors (Slotted and Drilled) are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved cooling and braking performance. Features include a unique cross-drilling and slotting pattern that aids in heat and brake dust dispersal, preventing pad glazing and improving wet weather response. Finished with a black e-coat for superior corrosion protection. This is a Left Front (Driver Side) rotor. Compatible parts in this series: 127.47018L (Left Front Rotor), 127.47018R (Right Front Rotor).