chedhead

hi can anyone help, ive just done an engine change in my95 wrx, the fuel rails on the old engine that came out has red/orange stickers on, and the engine ive put in has blue stickers on, this engine is out of my old 94 wrx are the injectors differant or are they the same, im asking because the car is running a prova ecu and im not sure how this is set up,hope some one can shed some light on it
cheers graham