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does anybody know if i can relocate my o2 sensor to a welded bung on a long tube header, i realize this would be only on one bank but i want to do some major exauhst mods for off road so no cats and side pipes.

 

Yes you could do that.

 

thanks. im puting long tube headers on and putting the sensor by the collector

 

dont even think about it unless you like to look at your check engine light. you need a cat to change your oxygen content in exhaust no cat no change

 

Your best bet would probably buy an O2 sim and just use that.

The Fastman makes 'em.
http://www.thefastman.com/02Simms.asp

 

Bullsh*t......................I have a gutted cat and have No CEL

 

i already have a o2 sim for the rear sensor and i have no cat right now and no light, no codes

 

I'm pretty sure He's talking about the Upstream O2.
It should work installing it in one header but like you said you only read one bank of the engine and the PCM will make adjustments based on just that one side. If your engine is solid and in good tune it probably won't make much difference.
A better idea would be to put the O2 sensor in a cross over pipe but that all depends on what your future exhaust plans are.

 

For me, no cat=no CEL

 

i have thought of a cross over buy i think i would need pretty tight bends to get to my side pipes. idk