Using these fender flares is straightforward. First, unpack them carefully and check for any damage. You'll need to prep the flares by sanding them lightly to ensure better paint adhesion. Then, do a test fit on your 2006 - 2007 Subaru WRX or STI sedan to make sure everything lines up correctly. Once you're satisfied with the fit, it's time to paint them. Choose a paint color that matches your car. Remember, these flares are made to order and will take 2 weeks to ship after you place your order. For maintenance, keep them clean by washing with a mild car soap. Avoid using abrasive cleaners as they can damage the gelcoat finish. If you notice any chips or scratches on the paint, touch them up promptly to prevent rust and further damage.