Using this K&N intake kit is straightforward. First, make sure your vehicle is turned off and cool. Then, follow the step - by - step installation guide that comes with the kit, which usually takes less than an hour. During normal use, you can drive up to 100,000 miles on the highway before needing to service the filter. When it's time for maintenance, remove the washable and reusable High - Flow Air Filter. Wash it gently with mild soap and water, let it dry completely, and re - oil it according to the instructions. Keep in mind that in California, some intakes aren't legal for pollution - controlled vehicles. Always check the CARB status for your specific vehicle part before installation.