Using your Injen cold air intake is straightforward. First, make sure your vehicle's engine is off and cool. Locate the appropriate spots in your engine bay according to the provided installation guide and install the intake. Once installed, start your engine to enjoy the increased performance. As for maintenance, regularly check the Injen SuperNano - Web dry air filter. When it gets dirty, follow the cleaning instructions to ensure it continues to provide good airflow and filtration. Be careful when working around the engine bay to avoid any damage to the intake components. If you notice any unusual noises or a decrease in performance, it's a good idea to check the intake for any loose parts or damage. And remember, this intake comes with a limited lifetime warranty, so if you have any major issues, contact Injen Technology.