Using this K&N cold air intake is easy. First, make sure your engine is cool before starting the installation. The entire system can usually be put in place in less than 90 minutes. Just follow the included instructions carefully. When it comes to using the intake, it will work automatically to increase your car's horsepower and torque. For maintenance, under normal highway driving conditions, you can go up to 100,000 miles before servicing the filter. To clean the filter, it's washable and reusable. Just use the appropriate cleaning kit and follow the steps provided. Also, remember that in California, some of these intakes may not be legal for use on pollution - controlled motor vehicles. Always check the product specifications for the CARB status related to your specific vehicle.