Hi, I am running 2012 wrx sedan with AP stage 1. I am on way to doing my coils and sway bars and later on downpipe and cat back.
I need some help to choose few gauges. basically 2(steering mount)+3(A piller)
I already bought a prosport mechanical boost and wideband o2 af for steering pod but my mechanic told me AF is only used for tunning and useless for a driver. so I did research and found that he might be true and is just useful for observation in driver perspective.
Now my understanding with usefulness of gauges falls in two categories:
1) just to observe things and if you see some wrong you have to tune it or do some kind of work in garage
2) observe things and act accordingly during driving (real time)
I choose no 2 gauges to be on steering mounts and No 1 on A piller. I can tell that boost gauge falls in category 2 but Idk what other gauges are in that category that helps me act dynamically. I haven't done much reading on fuel pressure and oil pressure gauges but any help is appreciated.