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Cummins Tuning Options
Duramax Tuning Options
If you have have our tuning currently and have changed/added modifications to your vehicle you may request a re-tune.
Changing to larger injectors, turbo(s), injection pump(s), or a built transmission may require a re-tune for your vehicle to run properly.
AUTOCAL LITE/SINGLE FILE TUNER customers wishing to upgrade please go HERE
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