Disc Brake Rotor (Rear) Construction: Full Cast. Z23 Daily Driver Carbon-Fiber Ceramic Brake Pad and Drilled & Slotted Rotor Kit. Disc Brake Rotor (Rear) Stud/Lug Hole Quantity: 5. Notes: Rear Z23 Daily Driver Carbon-Fiber Ceramic Brake Pad and Drilled & Slotted Rotor Kit.