Just picked up a 3 gauge oem setup that goes in place of the clock. It has boost, voltmeter, and oil pressure gauges. It came with everything except instructions (it was already installed in a car when the car was purchased). Anywhere I can get directions for this? Also, I just bought a COBB AP and plan to run stage 1. Is it absolutely necessary to install these gauges before I load the stage 1 map?

Go to Subaruparts.com, they have installation instructions there.