Genuine OEM Audi Engine Vacuum Pipe, part number 4S0611931C. This component is designed to channel vacuum for various engine operations, playing a vital role in systems such as brake boosting, emissions control, or turbocharger regulation. It is located within the engine compartment, connecting different vacuum-dependent components. The pipe weighs approximately 0.177 kg and measures 0.5 meters in length. Opting for a genuine OEM vacuum pipe ensures the correct material integrity, precise bends, and secure connections, which are essential for maintaining proper vacuum levels and preventing leaks that could impact engine performance.