Originally Posted by Johnny Boost
I would say 20 whp is pretty generous considering its a similar engine. AFAIK our cars max out in the 390s and the F30/F32 are about the same if not MAYBE 10 whp more but Terry's F32 is the only car that I've seen making power like that.
Similar engine, but I don't think the turbo is identical. It seems that the housing has a larger 4" outlet (vs 3" on earlier N55's) which seems to make a pretty big difference.