Using this Injen cold air intake is easy. First, make sure your engine is cool. Then, carefully remove the old air intake and install the new Injen SP intake according to the included instructions. When driving, you'll notice an immediate improvement in engine performance. For maintenance, check the Injen SuperNano - Web dry air filter regularly. If it's dirty, follow the cleaning instructions provided to keep it in good condition. Also, keep an eye on the air - fuel ratio, though the intake is designed to maintain a safe one. Avoid getting water in the intake when driving through deep puddles as it can damage the engine. If you have any questions during use, feel free to contact Injen's customer service.