Using your K&N air filter is super easy. First, locate your vehicle's factory air box. Open it up and take out the old air filter. Then, simply place the K&N air filter in the same spot. It's designed to fit right in. When it comes to maintenance, since it's washable and reusable, you don't have to replace it often. Every once in a while, check if it's dirty. If it is, you can wash it with a special K&N cleaning kit. Just follow the instructions on the kit. After washing, let it dry completely and re - oil it before putting it back in the air box. Remember, don't use harsh chemicals on the filter as it can damage the cotton media. Keep your filter in good shape, and it'll keep your engine running smoothly for a long time.