Using this 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 60 minutes. When driving, enjoy the increased horsepower and torque. For maintenance, under normal highway driving conditions, you can go up to 100,000 miles before servicing the filter. When it's time, simply wash the reusable High - Flow Air Filter with the appropriate cleaning solution and let it dry. Re - oil it according to the instructions. Remember, some intakes are not legal for sale or use on pollution - controlled motor vehicles in California, so always check the CARB status for your specific vehicle before installation.