Hi all
will a o2 sensor work on a stubbie straight through turbo exhaust 2.5 or 3 inch dia.
If so what is a good brand and type

Cheers

I have seen it done... Not sure how short your talking though Rich.... But I do know there is a some recommendations on placement.... Personally I have not placed my o2 well, but I have not seen any issues thus far.... That being said, I run a long 3" pipe with a 3" muffler, so the o2's effectivness might be helped somewhat.

PM sent Richard