Using this Injen air intake system is easy. First, make sure your car engine is cool. Then, carefully install the intake system following the included instructions. It's a straightforward bolt - on process. As for maintenance, regularly check the air filter. You can clean it when it gets dirty to keep the airflow efficient. When cleaning, use a proper air filter cleaner and let it dry completely before reinstalling. Also, keep an eye on the tube connections. Ensure they're tight and there are no signs of leaks. If you notice any issues, like a drop in performance or strange noises, it's a good idea to have it checked out by a professional.