StopTech Sport Rotors are 1-piece direct replacement brake discs for factory brake systems and stock calipers. These Slotted & Drilled rotors (Left Side) provide improved heat dissipation and cooling, reducing brake fade and increasing safety. The zinc coating offers protection from corrosion. Specifications: Rotor Style: Drilled & Slotted; Position: Front Left; Diameter: 275mm; Bolt Pattern: 5x114.3. This part number 127.33138L includes: 1x Front Left Sport Brake Rotor. For a complete axle set, it is recommended to pair with the right-side rotor 127.33138R.