Tuning out Back O2's???(LS1) or do you have to use sims

Hey guys just wondering if anyone knows this, can the back two O2's be tuned out with HP tuners on the LS1 or do you have to use sims????

oh and if tuning out, how??? :p

i think you gotta use sims

Sims are what I use and that makes it dead simple.

I agree with Roy that I don't think you can tune them out, though I may be wrong. The rear O2s are only used to send a message that the cats are working fine (so send the approriate mV). You could tune out the DTC, but I'm not sure how critical the rear O2 signal is when the car is running in closed loop. I know the front are more crucial and the rears are really just idiot sensors.

just talked to matt, says he can tune em out.

yep they can be tuned out.

Thanks Guys :)