K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Fits 1990-2006 BMW (X3, Z4, 520i, 525i, 530i, Z3, 728i, 728iL, 323Ti, 523i, 528i, M3), 33-2070
K&N Engine Air Filter: High Performance, Premium, Washable, Replacement Filter: Fits 1990-2006 BMW (X3, Z4, 520i, 525i, 530i, Z3, 728i, 728iL, 323Ti, 523i, 528i, M3), 33-2070
K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environment friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration. Vehicle Fitment: 2004-2006 BMW X3; 2003-2006 BMW Z4; 1996-2004 BMW 520i; 2000-2004 BMW 525i; 2000-2004 BMW 530i; 1997-2003 BMW Z3; 1994-2001 BMW 728i; 1996-2001 BMW 728iL; 1997-2000 BMW 323Ti; 1995-2000 BMW 523i; 1995-2000 BMW 528i; 1992-2000 BMW M3; 1990-1999 BMW 320i; 1998-1999 BMW 323Ci; 1995-1999 BMW 323i; 1997-1999 BMW 323iS; 1991-1999 BMW 325i; 1995-1999 BMW 328i; 1998-1999 BMW 328ic; 1996-1999 BMW 328iS; 1998-1999 BMW M Coupe; 1997-1998 BMW 328Ci; 1993-1995 BMW 325Ci; 1992-1995 BMW 325iS
Product Features
- ULTIMATE LONGEVITY: 10-Year/Million Mile Limited Warranty protects for the life of your vehicle.
- ENGINEERED POWER: State-of-the-art filtration media provides up to 50% more airflow than disposable paper filters to increase power and acceleration. Clogged or dirty air filters can reduce your vehicles acceleration by up to 10%.
- EASY INSTALLATION: Pre-oiled and ready to drop into your factory air box. One of the easiest and most cost-effective upgrades for your vehicle for quick performance gains.
- SAVES MONEY: K&N high-flow replacement air filters will save you $250 over 10 years by avoiding disposable filters.
- ECO-FRIENDLY: Using a washable, reusable product helps reduce replacement waste. A K&N filter will last longer than 10 disposable filters.
- WORLD CLASS PROTECTION: Pushing the limits of engine protection by protecting your engine from harmful contaminants.
- LOW-MAINTENANCE DESIGN: 50,000 miles before your first cleaning under normal highway driving conditions.
- HIGH QUALITY: Made in America.
- RACE TESTED: The Official Air Filter of NASCAR. Trusted on the racetrackmade for your vehicle.