The K&N replacement air filters are designed to enhance horsepower and acceleration while maintaining superior filtration. With over 1,200 different models available, K&N offers replacement air filters for the majority of vehicles on the road. These filters are washable, reusable, and custom-designed to fit seamlessly into your existing factory air box. Their drop-in design ensures easy installation, requiring only the removal of the disposable air filter and its replacement with a K&N filter. Our stock replacement air filters for street vehicles are backed by the renowned K&N Million-Mile Limited Warranty, guaranteeing that it will be the last air filter your vehicle will ever need.
- ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
- RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
- 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
- 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)
- REUSABLE K&N FILTER SAVES YOU MONEY: A K&N washable, reusable air filter will save you up to $125 vs. purchasing multiple disposable filters (compared to MSRP in USD of corresponding OE filters for 200,000 miles of highway driving)
- ULTIMATE LONGEVITY: No-hassle lifetime limited warranty on stock replacement K&N air filters- limitations apply
- EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
- REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
Installation Instructions
Technical Bulletin
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2007-2008 |
BMW |
X5 |
4.8i |
| 2009-2010 |
BMW |
X5 |
xDrive48i |
