Front and Rear 02's
 

I just removed the old exhaust from my car and tomorrow I'm putting in my longtubes and ORY. I have 02 sims for the rear but my question is, is it bad to put 02's from behind the cat onto the headers or do I need to make sure I put the same one's from before the cat on the headers?
I'm asking because one of the one's from before the cat's is a little rough from removing it so I'd rather use one from behind it.
Thanks

I actually had a front O2 that had stripped threads from the factory. I used a rear O2 to replace it when I installed my LT's & it worked perfectly for a year now.

Thanks, I really appreciate it.

The sensor is the same, I've done it too. One of the rears actually has longer wires on it.