Using your K&N air filter is super easy. Just take out your old air filter from the factory air box and drop in the new K&N filter. Make sure it fits snugly. When it comes to maintenance, since it's washable and reusable, you don't have to replace it often. Every so often, check if the filter looks dirty. If it does, you can wash it with a K&N cleaning kit. After washing, let it dry completely and then re - oil it according to the kit's instructions. Always follow the recommended maintenance schedule. Also, make sure to handle the filter gently to avoid damaging the cotton media. With proper care, your K&N air filter will serve you well for the whole lifespan of your vehicle.