I'm going to remove the cat today. How do I turn the 2nd O2 sensor off in HPTuners, and do I just disconnect the sensor and remove it so it doesn't have to hang around afterwards? Thanks!

 

there were three things if I remember... anything that says heated o2 sensor 2 bank one.
and something about low catalyst efficiency... or you can wait til you throw the codes... then those are the ones to disale... p01033 p01333 p00420 (don't remember exactly)

oh yeah, just look at the tune I sent ya... has them all disabled anyway

 

If you follow the O2 sensor wire up twards the engine there is a clip you can undo, and remove the the sensor so its not hanging.

 

Just like JMAc88 mentioned, unclip the sensor and remove it.
Just to be safe, zip-tie the wire out of the way.

Use the attachments as guides to avoid the codes.

 

I had to disable:

P0036
P0140
P0141

 

cool will be doing this as soon as i install my full 3" exhaust sans cat, that i built.

Nate

 

I'll be doing this too! since I fried my cat,I'm goin straight pipe,and I'll use HPT to turn it off.

 

oh you will get all kindas of codes i got yesterday
p0443
p0141
p0135
p0102
p0036
p0030

 

All those codes aren't associated with the rear O2 sensor being removed.

 

I did it. The car pulls harder now, and no CEL's!