The AMS EVO X Fuel Rail provides increased fuel flow which is necessary at higher boost levels. This CNCd aluminum rail comes anodized in Red or Black and includes our signature AMS logo. With a - 6AN (7.5 mm) diameter inlet and outlet it dwarfs the stock rail by over 25 in flow area. This is true bolt on part that will install with your factory fuel lines, fuel pressure regulator and will work with all factory style fuel injectors.