Originally Posted by Copefresh22
Should I hook up my a/f guage before I plug my new cobb ap in? ?
What gauge/sensor do you have? It is not necessary to run a wideband o2 sensor with the typical stage 1 or stage 2 set-up, but if you have one already, then it certainly would not hurt (and would give you more information that the stock o2 sensor can provide).