well after almost a year with gutted cats my cel finally came on and i remember reading somewhere that there was a company that could write custon tunes that disabled the 02 sensors. if anyone has any info let me know the type of programmer i would need and where to get that could write the tunes. thanks

 

Gutted cats?
Thought these motors needed cats to help with backpressure?
At least go with high flow cats.
No reputable tuner I know will write a tune for o2 sensor deletes.

 

X2 Get some Hi-flow cats. There is no benefit from running a catless vehicle.

 

I don't know of any tuner that will NOT write a tune to delete the rear O2's. They are pointless and there is no reason to have them in there. I had them deleted on my Supra, my Trans Am, and now on my truck too. I had hi flows welded in and ditched the rear O2's altogether.

Many shops may shy against doing it, but given the right circumstances, they will do it.

I'm not going to speak for any tuners on this board as I don't want to get any in trouble or advertising that they do it, but I know that some on here will delete the rear O2's and some won't.

And yeah gutted cats is a no no. Get some good hi flows and delete the rear O2's and be done.

 

If your going through the trouble of adding hi-flow cats, then why delete the O2's? They aren't going to send an error code.