StopTech Slotted Sport Brake Rotors are premium 1-piece direct replacement brake discs for your factory braking system. The 126.66044SL (Left Side) features specialized directional slotting that helps evacuate gasses, dust, and debris, ensuring a clean friction surface and improved wet weather response. Finished with a black e-coating for superior corrosion resistance on non-friction surfaces. Note: This is an individual component. For a complete front set, use with part 126.66044SR. Kit Components / Related Parts: 126.66044SL (Left Brake Rotor), 126.66044SR (Right Brake Rotor - Sold Separately).