Cant get o2 sensor off???

[grays]

not trying to cut it .

[BROKINBIMMER]

I had to chop it in half with a cutoff wheel, then use a 6 point impact socket with a 3/4 drive breaker while standing on the intake manifold...Eventually it broke free

[grays]

need help on getting this off. ive used vice grips locked on very hard with a pipe to turn it and no luck {the vice grip moves and not the o2 sensor}