So trying to insall a testpipe and for the life of me I cant remove to rear 02 sensor. Counter clock wise it tightens, clock wise it tightens... I dont know what to do here, never had this issue

 

try pulling on it while unscrewing.

 

Definitely counter clockwise, sounds like it is stripped

 

Try putting some heat on it if you got torches. Or spay it with pb blaster and put a pipe on your wrech for extra leverage.

 

Ended upmgoing down to autozone and got some pb blaster, let it soak for 10mins and she came off with ease.
Thanks guys.

 

pb blaster +1

 

if it is that stuck, it will take you a while to get it out. Plenty of PB blast, then try unscrewing a little. If you feel it moving, tighten it back up a bit, and then repeat. Eventually whatever is blocking it will come loose and it will come out.