Using this roof spoiler is easy. First, make sure your Subaru WRX is from 2022 - 2025. Clean the area on the rear window where you'll mount the spoiler. Then, use the included 3M adhesive to stick the spoiler in place. When installing, watch our video for tips on getting it right, and remember to do it in the ideal weather for the adhesive to bond well. As for maintenance, regularly clean the carbon fiber surface with a soft cloth and mild cleaner. Avoid using abrasive materials that could scratch it. If you notice any issues within the 1 - year warranty period due to manufacturer defects, reach out to us for support.