Using this K&N intake kit is easy. First, make sure your vehicle is turned off and cooled down. Then, follow the included instructions to install the kit, which usually takes less than an hour. During normal use, enjoy the improved engine performance and increased power. As for maintenance, under normal highway driving, you can go up to 100,000 miles before servicing the filter. When it's time, simply wash the filter with a mild cleaner, let it dry, and re - oil it. Remember, in California, some intakes are not legal for pollution - controlled vehicles, so always check the CARB status for your specific part and vehicle.