Using these Noble RD2 fender flares is easy. First, make sure your WRX is parked on a flat surface. Then, take out the fender flares from the package. They're designed to use the OEM mounting points, so simply align them with the existing holes on your car. You can secure them with the appropriate tools. When it comes to maintenance, just wash them with mild soap and water regularly to keep them looking great. Avoid using harsh chemicals as they might damage the ABS plastic. Also, check the mounting points occasionally to make sure they're still tight. These fender flares are built to last, but proper care will help them serve you well for years.