Feature: Using good performance filter media to captures various debris. The air entering the engine cylinder is finely filtered to prevent dust and debris, ensuring a sufficient amount of clean air. Air Filter was designed to clean up exhaust so that the engine is less likely clogged by dirt. With a cleaner output, the engine is able to function that leading to a smoother and better horsepower. Engine air filter built with good capacity media while providing smooth airflow, non-restricting airflow, to ensure optimal engine performance which improves vehicle miles per gallon. Direct replacement can be completed in 5 minutes without tools and modifications. replace engine air filter ensuring it is sealed around the perimeter, replace cover and fasten. OE Number:4F0133843Fitment: for Audi A6 Base 3.2L V6 - Gas 2006-2011 for Audi A6 Quattro Avant, Base 3.0L V6 - Gas, 4.2L V8 - Gas 2009-2011 for Audi A6 Quattro Avant, Base 3.2L V6 - Gas, 4.2L V8 - Gas 2006-2008 for Audi A6 Quattro Base 3.2L V6 - Gas, 4.2L V8 - Gas 2005 Package includes:1 Pcs Engine Air FilterNote: This is non-OEM product, accessory ONLY! Please check the compatible models and corresponding notes below the product description before purchasing.