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:22676970Fitment: for Buick Lucerne CX, CXL, Super 3.9L V6 - Flex, 4.6L V8 - Gas 2011 for Buick Lucerne CX, CXL, CXL Special Edition, Super 3.9L V6 - Flex, 3.9L V6 - Gas, 4.6L V8 - Gas 2010 for Buick Lucerne CX, CXL, Super 3.9L V6 - Flex, 3.9L V6 - Gas, 4.6L V8 - Gas 2009 for Buick Lucerne CX, CXL, CXS, Super 3.8L V6 - Gas, 4.6L V8 - Gas 2008 for Buick Lucerne CX, CXL, CXS 3.8L V6 - Gas, 4.6L V8 - Gas 2006, 2007 for Cadillac DTS Base, Livery, Luxury, Platinum, Premium 4.6L V8 - Gas 2010, 2011 for Cadillac DTS Base, Luxury, Platinum 4.6L V8 - Gas 2008, 2009 for Cadillac DTS Base, Luxury 4.6L V8 - Gas 2007 for Cadillac DTS Base 4.6L V8 - Gas 2006 Package includes:1 Pc Engine Air FilterNote: This is non-OEM product, accessory ONLY! Please check the compatible models and corresponding notes below the product description before purchasing.