Using your new spoiler is a breeze. First, check the package to make sure you have all the hardware including the bolts, screws, washers, and adhesion promoter. Refer to the template to ensure proper placement on your 2015 - 2021 Subaru WRX or STI. When installing, follow the video instructions carefully. Remember not to overtighten the bolts as this can damage the trunk or the spoiler. After installation, gently close the trunk; avoid slamming it. For maintenance, clean the carbon fiber outer layer regularly with a mild soap and water solution. Dry it with a soft cloth to keep it looking great. This will also help maintain its functionality and ensure it lasts a long time on your vehicle.