Genuine OEM Audi EGR Pipe, part number 057131525AL. This pipe is an essential part of the exhaust gas recirculation system, responsible for routing a controlled amount of exhaust gases back into the engine's intake. This process helps to lower combustion temperatures, reducing nitrogen oxide emissions and improving fuel efficiency. The pipe features a corrugated metal construction, allowing for flexibility and thermal expansion, and weighs approximately 0.26 kg. Opting for a genuine OEM EGR pipe ensures precise fitment, correct flow characteristics, and durability under high-temperature exhaust conditions, maintaining the vehicle's emission control performance.