Details The FAST™ High Flow Billet Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume, ensuring that your injectors never run dry. In addition, they yield better fuel distribution and ultimately greater horsepower. Featuring high strength billet, lightweight, red anodized aluminum construction, FAST™ LS1 fuel rails deliver performance in addition to a show car quality appearance. For use w/ OEM Truck/SUV injectors* / But can be configured for LS2-style injectors Includes Red Anodized Fuel Rails & Black Anodized #8 Fittings w/ “Super Seal” O-Rings