I am tring to find a boost gauge for my 04 wrx, have realy big morgage etc. etc. wrx budget getting smaller. any advice
Pep-Boys has the Autometer one gauge column mount which looks very nice for around. $20-30. Looks like This. http://www.prostreetonline.com/buy/autometer_gauge_accessories/atm-2204/ Gauge should run $30.00-40.00. VDO Autometer etc. Install should be free. So can be done from 50-60 bux.
I've got an Autometer mechanical. It gets the job done and was pretty cheap (I think like $40 but I also bought EGT and tranny temp so they cut me a deal). Steering column mount would be good if you want just one gauge. I believe Perrin makes a nifty steering column pod that fits 2 2 1/16" guages if you want another gauge.