Hi, I have god a Greddy Profec boost controller, I want to get it installed along with an intercooler for an R33. Do i need to upgrade the Fuel pump and regulator? I have been told that if i increase the boost to about 9 or 10 psi , without a new pump and regulator ,fuel spiking will occur leading to damage, is this true? Which do i get first, intercooler or fuel pump and reg.? any help would be appreciated. Thanks