Using this Injen cold air intake system is simple. First, make sure your Kia Stinger's engine is cool. Then, carefully install the intake system according to the included instructions. When driving, you'll immediately notice the improved performance and the exciting intake growl. As for maintenance, regularly check the air filter. If it's dirty, clean or replace it as needed. Also, inspect the intake tube for any signs of damage or loose connections. Keep in mind to always use the system within the recommended operating conditions of your vehicle. If you have any questions or encounter issues, don't hesitate to contact Injen's customer support.