StopTech Sport Slotted Brake Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. These rotors feature a unique Vac-U-Slots design that helps evacuate heat and brake dust, sheds water, and prevents pad glazing for improved braking performance in both wet and dry conditions. The black e-coating provides protection from corrosion on the cooling vanes and hub. This unit is for the front left position. Part number 126.34029SL is a single rotor; for a complete front axle set, it is paired with 126.34029SR.