StopTech Slotted Sport Brake Rotors are premium 1-piece replacement brake discs for factory brake systems. This part (126.34052SL) is a Left-Front, 312x25mm directional slotted rotor designed to improve braking performance by wiping away debris and cooling gases. The signature Power Slot pattern prevents pad glazing and improves wet weather response. Features E-Coating finish for corrosion resistance. Sold as a single unit: 1x StopTech 126.34052SL Front Left Slotted Rotor.