Originally Posted by str8nm
I am looking into buying a FMIC but they are saying I also need a new blow off valve. True or BS?
Well FMIC if you are looking for one VRSF is coming out with their's and it is $435. As for BOV since the N54 have MAP and not MAF the only thing the BOV is good for is sounds. Most people change b/c the charge pipe (if I'm not mistaken) can't handle the additional boost so it has a tendency to blow off. This is not the case with all application, as for some hold up with no problem some don't.