Using this Injen short ram intake is easy. First, make sure your vehicle is turned off and cooled down. Locate the existing air intake system and carefully remove it. Then, install the new Injen intake according to the included instructions. When you're done, start your car and enjoy the improved performance. As for maintenance, check the air filter regularly. If it looks dirty, you can clean the Injen SuperNano - Web dry air filter as per the cleaning guide provided. Also, ensure all the connections are tight to avoid any air leaks. When driving, don't put excessive stress on the intake system right after installation. Give it some time to settle in. And remember, this intake comes with a limited lifetime warranty, so keep your purchase receipt in case you need it.