rear Rear Drill Slot Brake Rotor Semi-Metallic Pad Kit For Audi A6 Quattro A7 Porsche August 22, 2023 admin Rear Drill Slot Brake Rotor Semi-Metallic Pad Kit For Audi A6 Quattro A7 Porsche. EST, MON to FRI. Brake > Service Kits > Disc Brake Kit.