How often should I clean my K&N air filter?

K&N recommends cleaning and re-oiling your filter every 50,000 miles for normal highway use. If you drive in dusty conditions, you may need to clean it more often. Use a K&N filter cleaning kit to maintain the filter's performance and warranty.

Does this filter come pre-oiled?

Yes, this K&N air filter comes pre-oiled and ready to install in your vehicle's factory air box. You don't need to oil it before the initial installation. Just drop it in and go.

What kind of warranty does this filter have?

This K&N air filter is backed by K&N's No-Hassle Lifetime Limited Warranty. This means K&N will replace the filter if it's defective in materials or workmanship. Be sure to follow the cleaning and maintenance guidelines to keep your warranty valid.

K&N 25+ BMW X5 M V8-4.4L High-Flow Replacement Air Filter

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K&N Engineering

K&N 25+ BMW X5 M V8-4.4L High-Flow Replacement Air Filter

Name: K&N 25+ BMW X5 M V8-4.4L High-Flow Replacement Air Filter
Brand: K&N Engineering
Price: 146.99 USD
Availability: InStock

$146.99

Washable and reusable air filter increases airflow and horsepower.

Key Features

Washable — clean and re-oil for extended use
Reusable — lasts longer than disposable paper filters
High-flow design — improved airflow over stock
Direct drop-in replacement — fits in the factory air box

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

Will this fit your vehicle?

Compatible with 20 vehicles

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Product Details

K&N's replacement High-Flow Air Filters are designed to increase horsepower while providing exceptional engine protection, and are covered by K&N's No-Hassle Lifetime Limited Warranty.

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 No-Hassle Lifetime 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!