Using your K&N Universal Air Filter is easy. First, make sure your engine is turned off. Then, carefully remove the old air filter and replace it with this new one. Ensure it's properly seated in the intake system. When it comes to maintenance, check the filter regularly. If it looks dirty, you can clean it with a K&N air filter cleaning kit. Follow the instructions on the kit for best results. Keep in mind that the filter should be completely dry before reinstalling it. Also, don't use any harsh chemicals or solvents on the filter as this can damage it. With proper care, your K&N air filter will serve you well for a long time.