I know a lot of people want to mount a single gauge on the A-Pillar, but there are not really any pods out there made to fit Imprezas. Basically what I did was, I bought an Autometer mounting cup, and drilled it onto my A-pillar. Then I drilled a hole behind the cup for the vacuum hose and wires to go through. I know it doesn't look as good as the 3 gauge Defi pod in the center, or a 3 gauge pod on the A-pillar, but I like it better like this than on the steering column. If anyone wants me to explain the steps I took to do this, let me know. I know I'm not the first person to do this, but I have never seen a write up on it or anything.