Using your K&N air filter is easy. First, locate your vehicle's factory air box. Open it up and remove the old air filter. Then, simply drop in the K&N replacement filter. Make sure it fits snugly and close the air box. That's it! As for maintenance, you don't need to replace the filter often. Instead, when it gets dirty, you can wash it. Use a K&N filter cleaning kit and follow the instructions on the kit. After washing, let it dry completely before applying the filter oil from the kit. When handling the filter, be gentle to avoid damaging the cotton media. Also, always refer to your vehicle's manual if you have any doubts about the installation process.