Using this air intake kit is easy. First, find a suitable place to work on your vehicle. Then, remove the old air intake system. Next, install the new kit by following the included instructions. It usually takes less than 60 minutes. When it comes to maintenance, under normal highway driving, you can go up to 100,000 miles before servicing the filter. When the time comes, just wash the reusable High - Flow Air Filter and let it dry before re - using. Remember, in California, some intakes aren't legal for sale or use on pollution - controlled motor vehicles. Always check the CARB status for your specific vehicle part to avoid any legal issues.