Ok guys I am getting some more O2 sensors for the headers. I have heard that the O2's in the front are differnt from the ones after the cats. I have also heard that the O2 sensor behind the cat is for some reason better(or will work better) in the front o2's position. Has anybody ever heard this before?

 

The 4 O2 sensors on the LS1 exhaust are all identical and interchangable, with the exception of the length of the wiring harness.

Bad30th