Using this intake kit is straightforward. First, make sure your engine is cool. You can usually install the entire system in under an hour. Follow the included instructions carefully. During normal highway driving, you won't need to service the filter until you've driven up to 100,000 miles. However, if you drive in dusty or dirty conditions, you may need to clean it more often. To clean the filter, use a K&N filter cleaning kit. Just wash the filter gently, let it dry, and then re - oil it. Also, keep in mind that in California, some of these intakes are not legal for pollution - controlled vehicles. Always check the CARB status for your specific vehicle before using it.