HYpothetical rear o2 simulators

[Zelek]

I believe they still turn off the P0420 code in the tune. Just the code though. The rear O2's are active on all their tunes. You can see it in the IM monitors on the Ngauge or any diagnostic plug in. I have one tune in the past with all of that turned off and that's how I pass inspection.

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[Einstein_nikola]

Yes. Have em on my car

you have not gotten any check engine lights with these defoulers Im guessing then? sounds like its been going good with them for you. also do you pass emissions with these?

 

[WildHorse]

I believe they still turn off the P0420 code in the tune.

100% correct Sir.

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