The FAST™ LSX™/LSXR™/LSXRT™ 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 (does not include Part #146020-KIT), FAST™ fuel rails deliver performance in addition to a show car quality appearance. The FAST™ fuel rails are available in a component matched kit, including black anodized #8 fittings and “super seal” o-rings.