StopTech Slotted Sport Brake Rotors are premium one-piece replacement brake discs for your vehicle's factory braking system. The 126.39038SL (Left Side) features a unique vacuum-cast, high-carbon metallurgy for improved thermal capacity and reduced fade. The specialized slotting helps sweep away debris, water, and gases to maintain consistent pad contact and improve bite. E-Coat finish provides long-lasting corrosion protection. This item is a single rotor (1 pc). Part numbers in this series: Left Rotor (126.39038SL), Right Rotor (126.39038SR).