Using the OLM ATAK roof spoiler is a breeze. First, pick the color you like. Then, take the included 3M mounting tape and carefully attach the spoiler to your Subaru WRX or STI (2015 - 2021). Make sure the surface is clean and dry before mounting. As for maintenance, just wash it with regular car - washing soap and water. Avoid using abrasive materials that could scratch the finish. When parking, try to avoid tight spaces where the spoiler might get bumped. This will keep your spoiler looking great for a long time.