Using this DC Sports mid pipe is easy. First, gather all the installation hardware included with the product. Then, find a flat and safe surface to work on. Carefully remove the old mid pipe from your 2017 - 2021 Kia Stinger 2.0L. Line up the new mid pipe with the OEM equipment and use the bolts to secure it in place. Make sure all connections are tight. As for maintenance, regularly check the bolts to ensure they don't loosen over time. Keep the mid pipe clean to prevent rust and damage. If you notice any unusual noises or performance issues, it's a good idea to have it inspected by a professional.