StopTech Sport Slotted Brake Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved cooling as well as other advantages the competition doesn't offer. The unique slotting aids with heat and brake dust dispersal, prevents pad glazing, adds bite and improves wet and dry braking performance. Components: 1 x StopTech 126.44189SL (Rear Left Slotted Brake Rotor). Features a durable black e-coat on the non-friction surfaces to provide lasting corrosion resistance.