6.7 emissions on tuning for 2020/2021

[silent64]

Has anybody tried the "black box" tuning for the 2020, if so how do you like it, and would you recomend it.

 

[ToMang07]

You taking about that stealth crap?

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[silent64]

You taking about that stealth crap?

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[silent64]

No, Im talking about the one from calibrated power