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Tune

matt grz
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matt grz Enthusiast

matt grz

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Im looking at getting the flashpaq by super chips and running the 87 tune or maybe the diablew custom tune with the Diablo tuner and also disabling the DFM BS and auto stop features.  I’ll be doing this on a 2020 GMC Sierra 5.3 10 speed.

 

My main concerns are Illinois emissions.
 

I’m wondering if I will fail emissions or get a “not ready” status running a tune with DFM and the auto stop features disabled?  Kind of like what the guys running the pulsar LT are running in to.
 

Has anyone experimented with this?  Thanks.

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