Using this K&N intake kit is easy. First, make sure your engine is cool before installation. It usually takes less than an hour to install the whole system. Just follow the included instructions carefully. When it comes to maintenance, under normal highway driving, you can go up to 100,000 miles before servicing the filter. The filter is washable and reusable, so when it's time for service, just clean it and oil it again. Be aware that in California, some of these intakes are not legal for use on pollution - controlled vehicles. Always check the product specifications for the CARB status of each part for your specific vehicle.