Using your Injen EVO9203 Evolution Cold Air Intake System is straightforward. First, make sure your engine is cool before starting the installation. Just follow the included instructions to install the intake tube, filter, and hardware. It's designed to be easy to fit, so you don't need to be a mechanic. When your car is running, the intake will work to bring in more air, giving your engine a power boost. As for maintenance, regularly check the SuperNano - Web Dry air filter. If it looks dirty, you can clean it following the cleaning instructions provided. Also, keep an eye on the hardware like the clamps and couplers to make sure they're tight and in good condition. Don't forget to check that the intake tube is not damaged or blocked. If you notice any issues, it's best to address them right away to keep your intake system working at its best.