Using your OLM Limited Edition dry carbon fiber hood scoop cover is super easy. First, make sure the area where you'll install it on your Subaru WRX or STI (2015 - 2021) is clean and dry. The cover already has 3M automotive - grade double - sided adhesive on it. Align the cover carefully with the factory color - coded piece on your car's hood. Once it's in the right place, press it down firmly. It should only take about a minute to get it installed. As for maintenance, you can clean it with a mild car cleaner and a soft cloth. Avoid using abrasive materials as they might scratch the carbon fiber. Also, try to park your car in the shade as much as possible to prevent long - term sun damage to the cover. If you notice the adhesive starting to loosen over time, you can gently re - press the cover to make it stick better.