Genuine OEM Audi Secondary Air Pipe, part number 1C0131126. This pipe is an essential component of the secondary air injection system, which helps reduce harmful emissions by pumping fresh air into the exhaust manifold during cold starts. It connects various parts within the emissions control system. Weighing approximately 0.08 kg, it measures 0.358m in length, 0.115m in width, and 0.04m in height. Opting for a genuine OEM secondary air pipe guarantees the correct material, heat resistance, and precise fitment, which are vital for maintaining the vehicle's emissions compliance and system integrity.