StopTech Sport Slotted Brake Rotors are 1-piece direct replacement brake discs for your factory brake system. This Rear Left side rotor features specialized vacuum-cast high-carbon metallurgy for improved heat dissipation and crack resistance. The unique Phillips-head slotting pattern helps evacuate gases and brake dust, ensuring consistent pad contact and improved wet weather performance. This is a single rear left rotor (1 unit). Part Number: 126.42047SL. Components included: 1 x StopTech Slotted Rear Left Rotor (126.42047SL). Features a black e-coating on the hub and vanes for superior corrosion protection.