Also does anybody know what size injectors come with the stage one and are they pumping enough full to support the HP racing T3/T4 kit they sell. Hp racing claims they used the stock fuel system but i find it hard to believe that it would be enough for that. Thanks for the help.
The stock S1 or 2004/05 SRT-4 Injectors are 577cc/min. I would not run a completely stock fuel system with that kit, your asking for trouble. Your gonna need to convert it to a return fuel system, upgrade the pump, get a non-regulating filter, fuel pressure regulator, and get at least RC 650cc injectors. I would go with 750's to be safe. When it comes to fuel I wouldn't take chances.
Good luck