Genuine OEM Audi Air System Connecting Pipe, part number 4F0133817M. This pipe serves to connect various components within the vehicle's air intake or emissions control system, ensuring proper flow and sealing. The diagram indicates it connects to parts of the secondary air injection system. Constructed from durable, corrugated plastic, it is designed to withstand engine bay conditions and maintain airtight connections. Weighing 0.2485 kg, this pipe is engineered for precise routing and secure fitment. Choosing a genuine OEM connecting pipe ensures correct dimensions, material integrity, and optimal performance of critical air and emissions systems.