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Nice like good looking, or nice like functionally nice?
I installed a dashlogic and pump all of that info (boost and more) through the HUD. The challenge with any gauge is location. With boost, you already know how incredibly fast things go. I couldn't imagine looking away from dead center to read a gauge while in acceleration and under boost. It's still difficult looking straight at numbers in the windshield.
Maybe thinking past where you are right now, but the most meaningful info I got is in a DL and not on the fly.