Looked around and couldnt find the answers i was looking for. For anyone that has GM stage 3 do you know if the cat converter sensor is disabled for those who decided to run catless.... I know that its unable to be tuned at this time with hp tuners so I was wondering if it still has all the sensors working or not.

 

Check this out:
https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/its-official-stage-3-info-91865/
Along with this:
https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/gmpp-stage-3-n2o-56k-warning-77484/
And this:
https://www.cobaltss.net/forums/2-0l-lsj-performance-tech-47/gm-stage-3-w-nitrous-hook-up-93736/

Do they answer your questions?

For short... from what i hear it does shut off the Rear 02 sensor, also it doesn't have a/c because GM doesn't have it as street legal... but there is a bypass i think in one of the links i gave you. I'm looking to get the stage 3 ecu by itself since the kit is more expensive cuz it comes with the dual pass end plate... its easier to just get a heat exchanger....

 

i am 100% sure it turns it off....

 

cool thanks a lot guys