Manufacturer Part Number: GD1772. Brake Rotor – GD Sport – Rear – Directional / Dimpled / Slotted – 10.700 in OD – Iron – Gray Paint – Audi 2010-20 / Volkswagen 2010-22 – Pair. Front/Rear: Rear. If a defect is identified after this period, it will fall under the manufacturer’s warranty and should be handled directly with them.