Genuine OEM Volkswagen Secondary Air Pump Connecting Pipe, part number 1C0131128H. This pipe is designed to connect the secondary air pump to the exhaust system, playing a vital role in the vehicle's emissions control strategy by injecting fresh air into the exhaust stream. It is a black corrugated pipe, weighing 0.16 kg and measuring 0.7 m in length. Using a genuine OEM pipe ensures proper routing, secure connections, and material resistance to exhaust gases, which is essential for maintaining emissions compliance and system integrity.