Custom tuning 03 cummins

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Sjake575

New member
Can someone tell me what's my best bet for getting custom tunes on my 03 cummins with nv5600 trans 60 horse injectors stock everything else but have bigger plans for next year


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Where can I I go to to have them do it? I've tried getting ahold of them multiple times I don't get an answer I leave a voice mail but don't get a call back.

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Wisconsin I talked to Montana from hardway he is gunna send me the Autocal and email me the tunes to download from my computer to the autocal

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