Reread youre thread. Youre question doesnt make sense.
But ,most, a/f gauges for the wrx do not work well/unreliable/inaccurate (ig,autometer) b/c you need a wide band O2 sensorfor the rex.
They are not "junk" and infact are one of the more important gauges one should have. You just have to spend alittle $ to get a good one.