Using these APR Side Rocker Extensions is a breeze. First, gather all the included mounting hardware - the screws, nuts, and washers. Make sure your car is clean where you'll be installing the extensions. Then, carefully position the extensions according to the vehicle - specific design for a perfect fit and use the provided hardware to secure them in place. As for maintenance, it's simple. Just clean the carbon fiber with a mild soap and water solution regularly. Avoid using abrasive cleaners as they can scratch the surface. When driving, be aware of curbs and other low obstacles to prevent any accidental damage to the extensions.