Using your Injen air filter is easy. Just install it in your vehicle according to the manufacturer's instructions. To keep it in top shape, clean it regularly with the Pro Tech air filter cleaning kit (part number X - 1030). When cleaning, make sure to follow the steps in the kit's manual. Avoid using harsh chemicals as they can damage the filter. Also, check the filter periodically for any signs of excessive dirt or damage. If you notice that the filter is severely dirty or damaged, it's time to clean or replace it. By taking good care of your Injen air filter, you'll ensure optimal engine performance and protection.