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Latest OTT Version?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by RoamingRando, Apr 13, 2024.

  1. Apr 13, 2024 at 8:22 AM
    #1
    RoamingRando

    RoamingRando [OP] Member

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    I got OTT installed in my 2019 Tacoma in the Spring of 2022. I still love it. Can someone tell me if the tune has been updated much since then, and if so, would it be worth updating my truck to the new one?
     
  2. Apr 13, 2024 at 10:10 AM
    #2
    Chew

    Chew Not so well known user

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  3. Apr 13, 2024 at 1:44 PM
    #3
    RoamingRando

    RoamingRando [OP] Member

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    Thanks u/Chew. I read up a bit and am assuming the latest version is 9. Haven’t seen anything higher.
     
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  4. Apr 13, 2024 at 1:50 PM
    #4
    BLtheP

    BLtheP Constantly Tinkering Member

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    Yes, been updated a few times. @JustDSM
     
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  5. Apr 13, 2024 at 1:56 PM
    #5
    JustDSM

    JustDSM Oderint Dum Metuant

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    You’re on an earlier version. You can update to the late 9.0 spec at no charge or convert to the CE file which is CARB-EO pending for our latest which will be 50 state legal.

    The CE file is a $50 for anyone on an earlier version of OTT.

    Updating to the later 9.0 or CE would be a decent upgrade, not a “total overhaul” so to speak but a refinement of the throttle control as well as some subtle tweaks to the engine calibration.
     
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  6. Apr 13, 2024 at 4:00 PM
    #6
    RoamingRando

    RoamingRando [OP] Member

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    Just had Q upload it for me and agree. Spent some time on the freeway and side streets on the way home to pick up some pizza and beer, seems like the same juice but with a smoother more refined squeeze, so to speak. Lovin’ it! Thanks for making time for me Q!
     
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  7. Sep 1, 2025 at 11:16 AM
    #7
    lewiscore350

    lewiscore350 Member

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    is version 9.0 still the latest one ?
     
  8. Sep 1, 2025 at 11:29 AM
    #8
    Big Cole

    Big Cole Well-Known Member

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    Contact OTT directly. These dudes are very responsive.
     
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  9. Sep 1, 2025 at 1:20 PM
    #9
    JustDSM

    JustDSM Oderint Dum Metuant

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    Funny you mention it!

    We're about to announce an update to the non-CARB file, which will be Version 9.2

    Stay tuned to the OTT Social Media outlets and our OTT thread in the performance section regarding that update.

    Thanks! :)
     
  10. Sep 9, 2025 at 11:44 AM
    #10
    Mach

    Mach Well-Known Member

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    What is the difference between the CARB and non carb versions? Or does CARN just lag because it has to be retested?
     
  11. Sep 9, 2025 at 12:24 PM
    #11
    JustDSM

    JustDSM Oderint Dum Metuant

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    The update just released is an update to the original 9.0 file, which came out right before the CARB calibration. It includes some reworked areas we felt were exciting enough to push out now.

    As mentioned in our announcement, the new 9.2 update is already in the process of being certified for CARB-EO. Once that approval comes through, it’ll replace the current CARB file as our main offering. In the meantime, customers can choose between the current CARB file or the pending 9.2 update.

    Non-CARB versions can be released as soon as development and validation are complete. CARB versions, however, must go through the state’s Executive Order (EO) certification process, which involves extra testing, paperwork, and review. Because of that, CARB-legal calibrations naturally lag behind non-CARB versions—not from delays in tuning, but because of the lengthy approval process.
     
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