Genuine OEM Audi Intake Air Duct, part number 420129928. This molded plastic component is crucial for directing a precise flow of ambient air into the engine's intake system, supporting efficient combustion and engine performance. It is specifically designed for installation on the right side of the engine bay. With dimensions of 0.38m in length, this duct ensures correct routing and sealing. Opting for a genuine OEM intake air duct guarantees the correct geometry, material integrity, and airtight connections necessary for maintaining optimal engine efficiency and preventing unfiltered air entry.