people use N60 mafs out of maximas, rb20's etc. to me its just not worth it. the tuning base is so much easier on n62 z32 mafs. the n60 mafs are supposedly only good for 300, maybe a little higher...some go higher but i dont really know much about them. z32 mafs are just the thing to do. gives u up to 525hp at least, even if u dont see it, do it.