You are asking people for advice on turbos since you say you never gone down that road before, yet you complain when people tell you not to use an FMU. People are telling you here from EXPERIENCE not to use it where as you are going by what you have read. I highly suggest you listen to them if you don't want to blow up your engine. Remember a stock engine is not designed for boost so you should take every precaution to not damage it, even at a lowly 6-7 psi.