Using your Injen Cold Air Intake is easy. First, make sure your car engine is off. Then, install the intake system according to the included instructions. Once installed, start your car and enjoy the improved performance. When it comes to maintenance, regularly check the air filter. If it looks dirty, you can clean it following the cleaning instructions provided. It's a fully serviceable dry air filter, so it's not too hard to maintain. Also, check the clamps and couplers every few months to make sure they're tight and in good condition. If you notice any issues, don't hesitate to contact Injen's customer service. And remember, this intake is designed to work with the stock calibration, so you don't need to make any major changes to your car's settings. Just install it and go!