If I remember correctly, jeffrey10x2 mentioned the stock boost gauge is somewhat incorrect, and it is limited to 10 pounds to boot. Now, would it be difficult to swap the dash with an NA SSE to get the volt gauge and get a piller pod with an aftermarket boost guage? Would the dash just plug in, or would there need to be a voltmeter installed somewhere?

I would start by doing a comparison chart of the two different clusters and their wiring harnesses.

That'* gonna be a tough one.

I personally don't believe the factory boost gauge is inaccurate on the Series 1. I know the Series 2 MAY be, but I don't know for sure. I ran an aftermarket gauge when I was testing my water injection, and it read within .25 psi of the gauge at full boost. I can't speak for other cars, though.

I know Jeffrey and I both have a different problem. We're off the scale, but it'* still pretty easy to determine the actual boost.

You're going to be doing some custom wiring to make the SSE dash work. Do what I did. Voltmeter and Tranny temp in the pillar. Stick with the stock boost gauge.