Using these fender flares is easy. First, get your Subaru WRX or STI from 2006 - 2007 ready. You can either bolt or screw the flares into place. The front ones are in one piece and the rear ones are two - piece cut for the door opening. Before you attach them, you'll need to do some prep work and make sure they fit perfectly. Then, give them a fresh coat of paint. Remember, these are made to order, so they'll ship 2 weeks after you place your order. To keep them in good shape, avoid hitting them against hard objects. If they get dirty, just use a mild soap and water to clean them.