Genuine OEM Volkswagen Rear Bumper Diffuser, part number 5G9807568N9B9. This component is the lower valance of the rear bumper, designed to manage airflow and contribute to the vehicle's aerodynamic profile and aesthetic. It is positioned at the bottom of the rear bumper assembly. Finished in Satin Black (9B9), this diffuser ensures a precise fit and factory-matched appearance, critical for maintaining the vehicle's original design and structural integrity.