Using your Injen intake is easy. First, make sure your vehicle is turned off and cooled down. Follow the included instructions to directly install the intake kit. Once installed, start your vehicle and enjoy the enhanced performance. When it comes to maintenance, regularly check the air filter. If it looks dirty, it's time to clean or replace it. This will help keep your intake working efficiently. Avoid driving through deep water as it can damage the intake. Also, make sure all connections are tight to prevent air leaks. With proper use and maintenance, your Injen intake will serve you well for a long time.