Black Bear Tune - 6.2?

[Matt Flynn]

I’m curious who here has gotten a tune (ideally Black Bear) without tuning the transmission? I’ve got a ‘17 - 6.2 Sierra Denali, and have been considering going with their tune, however i understand that 17’s and newer can’t have the transmission tuned.  Would it still make sense to have the ECU/motor done?

[lovelessjl]

I have a Blackbear tune on a 15, and they did adjust the trans on mine, but after their tune it was a completely different truck. Call them up and pick his brain, really nice people, they'll give you the scoop.

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[Black02Silverado]

Unless something has changed, I was under the impression that 17's and up can't be tuned until someone can crack the ECM.

[lovelessjl]

Unless something has changed, I was under the impression that 17's and up can't be tuned until someone can crack the ECM.

I think gas trucks can be tuned, it's just a bigger pain to do than it was before, it's the duramax trucks that you can't tune.

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[huntr1117]

You can only tune the motors in the 17s with the 8 speed. The tcm is locked. Unless you can find a spare tcm out of a 15 or 16 with a 6.2 8 speed trans you can swap out the tcm and both the motor and trans can be tuned. Hp tuners also offers a service that you can send in your tcm to have unlocked for I think $200. I'm not sure if blackbear can or will tune the unlocked HP tcm.

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