Using your K&N drop - in air filter is easy. First, locate your vehicle's factory air box. Open it up and carefully remove the old air filter. Then, place the K&N filter in the same spot where the old one was. Make sure it fits snugly and close the air box. That's it! For maintenance, you can wash the filter when it gets dirty. K&N provides a cleaning kit that you can use according to the instructions on the kit. Just soak the filter in the cleaner, rinse it gently, and let it dry. Once dry, re - oil the filter using K&N's filter oil. It's important to note that you should only use K&N's recommended cleaning and oiling products to ensure the filter works properly. Also, check the filter regularly, especially if you drive in dusty or dirty conditions.