Using this Injen cold air intake is straightforward. First, make sure your engine is off and cooled down. Then, carefully install the intake according to the included instructions. It's designed to fit specific INFINITI M35 models from 2006 - 2008, so double - check the fit. Once installed, start your engine and enjoy the improved performance. For maintenance, regularly inspect the Injen SuperNano - Web dry air filter. If it looks dirty, clean it as per the cleaning guide provided. This will keep the filter working well and ensure good airflow. When it comes to safety, always disconnect the battery before working on the intake to avoid any electrical issues. Also, don't use any harsh chemicals on the intake components as it could damage them. With proper use and maintenance, this intake will serve you well for a long time thanks to the lifetime warranty.