StopTech Slotted Sport Brake Rotors are premium 1-piece direct replacement brake discs for factory brake systems and stock calipers. The Power Slot design provides improved cooling and helps to wipe away debris that forms between the pad and the rotor, ensuring consistent bite and optimal stopping power in all weather conditions. These rotors feature a special black e-coating on the non-friction surfaces for superior corrosion resistance and a high-performance look. This specific item (126.66057SL) is the Front Left (Driver Side) Slotted Rotor. Key features include: Vac-U-Slots for heat and gas dissipation, enhanced wet weather response, and consistent performance during spirited driving. If you are looking for a complete front axle set, this item should be paired with the Front Right partner: 126.66057SR.