Just did this on my R34 this afternoon, it works..it's now hitting 8psi at about 2,500rpm.
Will be hooking up a switch next weekend to switch between high boost & low/hi boost.
Also, in the pic it looks like the black wire to the plug is still connected but it's not - it's just tucked back into the black surround.
Question:When I put on a full turbo back 3 inch exhaust this will be rendered unnecessary, correct?