OK i've just leafed through a huuuuuge thread on this and answered one question-looking at the opictures it seems you MUST use the Y pipe that comes with the headers and hence you need the correct OE cat? I suppose that's no big issue. But whats the deal with the EGR? If the EGR is different on some cars can we not get the correct EGR pipe from Ford?(as all the UIM's are the same right?!)
