Using this Injen air intake is easy. First, make sure your truck's engine is off and cooled down. Locate the existing air intake system and carefully remove it. Then, install the Injen EVO9007C in its place, following the included instructions to connect all the parts properly. For best results, use the factory harnesses provided to avoid any issues. When it comes to maintenance, regularly check the 8 - layer oiled cotton air filter. If it's dirty, clean it with the appropriate air filter cleaner and re - oil it. Always use genuine Injen parts when replacing any components. And remember, if you notice any unusual noises or performance changes, have your truck checked by a professional.