StopTech Sport Drilled & Slotted Brake Rotors are 1-piece direct replacement brake discs for your factory brake system and stock calipers. They offer improved stopping performance and cooling through a patented cross-drilling and slotting pattern that provides better bite and prevents pad glazing. The durable black e-coating on non-friction surfaces protects against corrosion. This item is a single right-hand (passenger side) front rotor. Kit Components (Per Side): 1 x StopTech 127.40021R Brake Rotor. Dimensions: 262mm Diameter, 21mm Thickness, 4-Lug Bolt Pattern.