All necessary mounting hardware is included. We recommend drilling small pilot holes into the OEM splitter before installing the provided screws. Thoroughly clean the vehicle's surface with alcohol prior to installation to ensure a proper bond with the 3M™ tape. For best results, apply adhesion promoter to the back side of the flares before installing the 3M™ tape. Optimal surface temperature for the 3M™ Super Strength Molding Tape is above 65°F (18°C). Bumper scrape guards, such as SLiPLO® (shown in photos), are recommended to prevent damage to the carbon fiber from scraping on the ground. Applying paint protection film on carbon fiber products is highly recommended to prevent rock chip damage and extend the life of the finish. The Carbon Fiber version will withstand higher speeds than the Polyurethane version. If the vehicle will be driven above 110 mph, splitter rods are highly recommended for the Polyurethane version.