Genuine OEM Audi Secondary Air Injection Hose, part number 06E131143AG. This corrugated hose assembly is an integral part of the secondary air injection system, facilitating the flow of air to reduce emissions. It connects various components within this system. Weighing approximately 0.12 kg and measuring 0.56 m in length, its specific design and material are chosen for durability and resistance to engine bay conditions, ensuring the system operates effectively and maintains emissions compliance.