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

K&N recommends cleaning your filter every 50,000 miles under normal driving conditions. If you drive in dusty or off-road conditions, you may need to clean it more often. Use a K&N filter cleaning kit to properly clean and re-oil the filter.

Will this filter void my vehicle's warranty?

Using a K&N replacement air filter will not void your new car warranty. K&N air filters are designed to meet or exceed OEM specifications, and the Magnuson-Moss Warranty Act protects your warranty when using aftermarket parts.

Does this filter come pre-oiled?

Yes, this K&N air filter comes pre-oiled and ready to install. The oil is essential for trapping dirt and contaminants, so it's important to re-oil the filter after cleaning.

K&N Air Filter 33-3079 | BMW 740i 2015-2018

Name: K&N 15-18 BMW 740I L4-3.0L F/I Replacement Drop In Air Filter
Brand: K&N
Price: 68.99 USD
Availability: InStock

K&N 15-18 BMW 740I L4-3.0L F/I Replacement Drop In Air Filter

$68.99

Only 5 left in stock

Washable, reusable air filter improves airflow and saves money. Direct fit for your factory airbox.

Key Features

Washable and reusable — save money on replacement filters
Designed to increase horsepower — get more performance from your engine
Direct drop-in replacement — installs easily in the factory air box
Oiled cotton media — traps contaminants and improves airflow
10-Year/Million Mile Limited Warranty — K&N stands behind their product

⚠️ 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

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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!