witch gm senser to use ? i have 2

[girlpower92]

ok i have to of them and the one is biger then the other. 1 is a 3" and the other is a 3.5". so im trying to find out witch i should use. i dont know what cars they came off .heres a pic

 

[slowpokin699]

Assuming they came off the correct cars you could use either, you'd just have to set up the translator to either the 3" or the 3.5" meter. The instruction manual shows you what knob to turn for which meter.

 

[JessesTalon]

The one on the left should work. The bigger one on the right will work fine and allow more airflow.

Is your 91 still a NT? I didn't know you could use the maf-t on the 4g63 n/t's cool.

 

[girlpower92]

how do i find out what car they cam from ?

its not for my car its for a tsi. and yeah you could yous it on a n/a from what i have read

 

[dnhieu]

from what i have found the 3" come from the v6 gm cars and the 3.5 comes from the v8 gm cars like the trucks and newer vettes. now dont think just because a vette uses them that they are better! it is true that it is bigger so it SHOULD flow more air. but...what is it going to do when you have 2.5 inch piping to a 3.5 inch sensor back to 2.5 inch piping? absoultyl NOTHING! I would use the 3" gm sensor unless you plan on running 3" intercooler piping where i would use the 3.5 inch sensor

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