Using this APR front air dam is easy. Just install it onto your 2018 - 2021 Subaru WRX or STI's factory front bumper following the included instructions. When installing, make sure all the parts are securely attached to avoid any issues while driving. As for maintenance, regularly check the connections to ensure they are tight. Clean the carbon fiber surface with a mild soap and water solution to keep it looking great. Avoid using abrasive cleaners as they can damage the finish. If you notice any signs of wear or damage, replace the part promptly to maintain its performance.