Genuine OEM Audi Engine Air Filter Box, part number 8K0133837BR. This component serves as the protective housing for the engine's air filter, safeguarding it from debris and ensuring a consistent supply of clean, filtered air to the engine. It is an integral part of the intake system. Weighing approximately 2.29 kg, this box is designed for durability and proper sealing. Choosing a genuine OEM air filter box guarantees precise fitment, proper sealing to prevent unfiltered air entry, and robust construction to withstand engine bay conditions, maintaining optimal engine performance and longevity.