Genuine OEM Audi Brake Booster Vacuum Pipe with Valve, part number 8R2611931A. This critical component is responsible for transmitting vacuum pressure from the engine's intake manifold to the brake booster, providing power assistance for the braking system. It is positioned in the engine bay, directly connecting to the brake booster. The integrated valve ensures one-way vacuum flow, maintaining vacuum pressure for consistent brake performance. Constructed from durable, vacuum-resistant materials, this pipe is designed for reliable operation. Using a genuine OEM vacuum pipe ensures precise routing, proper sealing, and correct valve function, which are vital for safe and effective braking.