Genuine OEM Audi EGR Connecting Tube, part number 03L131521J. This tube connects components of the exhaust gas recirculation system. It is part of the emissions system. The tube measures 150mm in length, 80mm in width, and 70mm in height. Genuine OEM EGR connecting tubes are constructed from materials that can withstand high exhaust gas temperatures and pressures, ensuring the integrity of the EGR system.