Genuine OEM Volkswagen Rear Bumper Spoiler, part number 3C5807521AJGRU. This is the lower aerodynamic trim piece that attaches to the bottom edge of the rear bumper. It enhances the vehicle's appearance and can contribute to aerodynamic efficiency. Features a grey finish (GRU). Genuine OEM spoilers are manufactured to precise specifications for a perfect fit and integration with the bumper assembly.