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Thread: 2015 Mustang GT Roush Phase 2 Tune

  1. #1
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    2015 Mustang GT Roush Phase 2 Tune

    Can someone clear something up for me?
    I have a 15 GT in with a Roush Phase 2 that was installed last summer and Roush's tune loaded.

    I have done a read of the ECU and it appears to be a usable file. But a couple years ago I had a 17 Roush Phase 2 in and read the tune and it appeared to be usable but when ever I would make a change and reload the car would start doing strange things. I fought with it for a week. Any time I would reload the Roush file it worked just fine, but if I made a single change to a spark table or anything it would cause all sorts of issues.

    So my question at this time is. Is this still the case or if I read this ECU and make an injector change for new injectors will it work or do I have to do something on the front side to make it work?

    I feel like this has been beat to death but I can not find a solid answer.

    Thanks in advance.
    Danny

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    you can flash roush files and edit and adjust normally no issues
    Follow @MASTUNING visit www.mastuned.com
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  3. #3
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    I appreciate the response.

    I'll give it a go and see what happens!

    Thank you very much.

  4. #4
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    Sultan,
    When we flash these, should we be writing complete or just the cal?

  5. #5
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    Feb 2025
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    Hi Guys i have a 17 GT Roush Phase 2 auto looking for the stock phase 2 file, my calibration has been adjusted and causing issues and i dont have the original to return to stock or compare whats been changed can anyone help me out or point me in the right direction? cheers

  6. #6
    Would grab a copy as well!

  7. #7
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    were you able to download a file for this 17 GT Roush Phase 2?