I bet it was a boost leak or just that piping! Get that fixed first before you keep asking what is causing the boost to be so low!! That pipe is probably just flexing after 5psi. Go to slowboyracing.com and order a universal intercooler piping kit. Talk to mike over there and he'd be able to hook u up. It comes with a bunch of piping, couples, and clamps. This way you can redo your whole setup. No more ghetto stuff! Ghetto====problems!!!!!!!