StopTech Slotted Sport Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. The directional 'Vac-U-Slots' help evacuate gasses, dust, and heat, ensuring consistent braking performance and improved cooling. These rotors feature a black e-coating on the non-friction surfaces for long-lasting corrosion resistance. This specific part (126.33136SL) is the Premium Slotted Front Left (Driver Side) Rotor. Included in this series: 126.33136SL (1x Front Left Slotted Rotor). For a complete front set, pair with 126.33136SR.