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.

Does this filter require oiling?

Yes, this K&N air filter uses a specially formulated oil to help trap dirt and contaminants. The oil is part of what allows it to filter so well while still allowing good airflow. You'll need to re-oil it after cleaning.

Is there a warranty on this air filter?

Yes, K&N provides a 10-Year/Million Mile Limited Warranty for this air filter. This means K&N warrants that the filter will perform properly for up to 10 years or 1 million miles, whichever comes first.

K&N 09-10 BMW Z4 2.5/3.0L-L6 Drop In Air Filter

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K&N Engineering

K&N 09-10 BMW Z4 2.5/3.0L-L6 Drop In Air Filter

Name: K&N 09-10 BMW Z4 2.5/3.0L-L6 Drop In Air Filter
Brand: K&N Engineering
Price: 68.99 USD
Availability: InStock

$68.99

Improved airflow for your Z4, and it's reusable. Save money and get a little more power.

Key Features

Washable — clean and re-oil for extended use
Reusable — lasts the life of your vehicle
Direct drop-in replacement — installs in the factory airbox
Oiled cotton gauze media — traps dirt and improves airflow
10-Year/Million Mile Limited Warranty — K&N stands behind their filters

⚠️ 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 22 vehicles

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Since 1957

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Product Details

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!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!