My O2 was still good, but it was the
origonal, so I thought it could use
a new one

it was seized, tore
the threads out, so I had to cut a
large nut in half that had the proper
thread and weld it to the manifold.
Then the new Bosch O2 I bought
quit working in like 9 months

and had to spend another $30 to
get another one, so if yours is working
leave it to do it's job.
Wild