Genuine OEM Volkswagen Rear Bumper Diffuser, part number 5K6807521F9B9. This component is integrated into the lower section of the rear bumper, designed to manage airflow under the vehicle for improved aerodynamics. It is positioned at the rear of the vehicle. Finished in Satin Black (9B9), this diffuser measures approximately 1.24 meters in length. Opting for a genuine OEM diffuser ensures precise fitment, proper aerodynamic function, and durability, maintaining the vehicle's intended performance and appearance.