Alright I Just Installed My Headers Last Night On My Truck But When I Finally Got The O2 Sensors Out All Of Them Had At Least Some Of The Threads Messed Up On Them And I Dont Know If I Can Use Them. Also Are All 4 Sensors The Same, Can I Use The Rear Ones For The Ones That Go In Front Of The Cat, Cause They Are In Better Shape. Ive Got The Nelson Tune To Due Away With The Rear Ones So All I Need Is The Front Ones. Help!!!!

 

they are not the same, but might work, plug em in, start it up and see if the ses light comes on,
if it does get new sensors.

 

correct the sensor are not the same. I think you will still get a light. I believe the rear ones are more sensative than the front ones, because those are made to moniter the cats, while the front ones moniter the emmision before the cats.

They are pretty expensive, they are around 70 bucks a peice and that was getting hooked up.

 

Can anyone suggest some O2 sensor simulators for when I install my pacesetters, and Y Pipe? Do I just need to use the sensors on the rear ones, or on both sets.