I have a quick question. I have a stock walbro fuel pump that came off of a stock srt-4 and im pretty sure its a 255. would it work just as good as anyother walbro 255 fp in the evo or should i buy a new one. thanks

 

depends on the orientation of the inlet and outlet. You need the Walbro GSS 342. Inlet and outlet nipples are in the directly above/below each other on opposite ends of the pump.

 

It might not be 255, I would not trust that fuel pump when you can get a new for $85 shipped. It might save your engine!