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- ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply
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Year Make Model Submodel 2004-2007 BMW 525i Base 2006-2007 BMW 525xi Base 2008-2010 BMW 528i Base 2009-2010 BMW 528i xDrive Base 2008 BMW 528xi Base 2004-2007 BMW 530i Base 2006-2007 BMW 530xi Base 2007-2008 BMW Z4 M Coupe 2007-2008 BMW Z4 M Roadster