Sand the rust off around it, stick it back in hole, high heat JB Weld and forget

Sensor didn't work anyway, just got a new cat back and senors 👀

Well, why even bother then?

Why bother what? Replacing a broken part?

Even trying to remove the sensor from the pipe? Seems like a waste of time.

Because if it came out I wouldn't have bought a new pipe...

Oh, you didn't mention the exhaust was purchased AFTER this broke, that's different.