Genuine OEM Audi Connecting Pipe, part number 028131521AA. This pipe is a crucial component within the emissions control system, responsible for connecting the exhaust gas recirculation (EGR) valve to other system elements. Its flexible, corrugated design allows for thermal expansion and vibration absorption. Weighing 0.166 kg and measuring approximately 14 cm in length, it ensures proper exhaust gas flow. Choosing a genuine OEM connecting pipe guarantees precise fitment, material durability, and resistance to high temperatures and corrosive exhaust gases, maintaining emissions compliance and engine efficiency.