Using this Injen cold air intake is straightforward. First, make sure your engine is cool before installation. Remove the factory intake system carefully following the vehicle's service manual. Then, install the Injen intake in place, ensuring all connections are secure. When it comes to maintenance, regularly check the intake tube for any signs of damage or debris. Clean the air filter every few months, or as recommended by the manufacturer. You can use a specialized air filter cleaner for best results. In terms of precautions, avoid driving through deep water as it can damage the intake. Also, if you notice any abnormal engine noises or performance issues after installation, it's a good idea to have the intake system checked.