K&N washable, reusable High-Flow Air Filters feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Technical Bulletin- CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles
This Part Fits:
Year Make Model Submodel 2002-2008 Audi A4 Base 2003-2009 Audi A4 Cabriolet 2002-2008 Audi A4 Quattro Avant 2002-2008 Audi A4 Quattro Base 2004-2009 Audi A4 Quattro Cabriolet 2007-2008 Audi RS4 Base 2008 Audi RS4 Cabriolet 2004-2008 Audi S4 Avant 2004-2008 Audi S4 Base 2004-2009 Audi S4 Cabriolet