Looking to put 2 Gauges in the A-Pillar on my B5. I want to know besides Boost what is the 2nd most important gauge to put? Oil Pressure? Fuel Pressure? Air/Fuel Ratio? Or an Others?

Another question is is the 99.5 A4 similar to that of the 99-05 Jetta or 98-00 Passat?

 

Boost, Oil Pressure, Exhaust Temp... The narrow band Air/Fuel ratio gauges are crap, fuel pressure really isnt needed unless your engine requires higher then stock fuel pressures, in which case just get a good high quality fuel pressure controller and a new fuel pump thenno worries there... Oil pressure is extremely important on a boosted car so I would say to go with that...

SMo'

 

Thanks alot sounds good.
Ill be placing my order shortly =]
ill post pics when its installed thanks again

 

Any ideas on the pod i need? Jetta or Passat?

 

how about one of those huge tacks with the yellow shift light?/ jk about that one
ya boost and oil will be good. what about a wide band o2

 

As Jeff said a wide band 02 would be areally goodidea, they are especially useful when you start tuning the air/fuel ratio (they are pretty much pointless until you start tuning the air/fuel)... Just dont waste your time/money on a narrow band 02 sensor...

SMo'

 

see if you can a zeitronix wideband. i just got one for xmas and waiting for it to show up tomorrow. best a/f sensor on the market

 

Passats are pretty much based on a4's... I think jettas are more related to a3's since they use the same parts like brakes and stuff.

 

they make them for a4's too

 

EGT gauge.... exhaust gas temperature, very useful gauge.