the header fitment sounds about as involved as any other header that needs to be fit on a zetec contour/cougar. Would be nice if there was a conversion kit sold for us.
15HP though off on a single header, seems a little far fetched to me, without everything else being bone stock. It can be good but THAT good?
Also, 3" exhaust? If hes got the #'s to prove I guess you can't argue it but that seems just a little overkill IMO.
but I'm not an expert by a long shot.