Using this Injen cold air intake is easy. First, make sure your engine is turned off and cool. Remove the old air intake system carefully following your vehicle's manual. Then, install the Injen SP cold air intake in its place. Connect all the tubes and hoses properly. When it comes to maintenance, regularly check the Injen SuperNano - Web dry air filter. If it looks dirty, it's time to clean it. You can follow the cleaning instructions that come with the filter. Also, keep an eye on all the connections to make sure they're tight. Remember, this intake is designed for specific 2008 - 2014 Mitsubishi Lancer models, so don't try to use it on other vehicles. If you have any questions during installation or use, refer to the Injen Technology support or your vehicle's manual.