Genuine OEM Audi Air Filter Inlet Duct Guide, part number 2Q0129509. This component is designed to efficiently guide incoming air into the air filter housing, ensuring a clean and consistent air supply for the engine. Made from durable black plastic, it measures approximately 0.655 m in length and weighs about 0.583 kg. Using a genuine OEM air duct ensures proper airflow dynamics and a perfect fit, which is crucial for maintaining engine efficiency and protecting internal components.