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6.4 Tune Results
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[QUOTE="p8ntballn2, post: 617798, member: 6258"] I don't have the race tune... But I just got off the dyno and my truck kept down shifting... Wouldn't hold OD on the dyno.... Matt tweaked my trans tune a few months ago, not sure if that has anything to do with it... My truck holds OD on the street... But with the down shift max hp was 446 and max tq was 840... Not bad for 4th... Looked like I need tractions bars for sure. ... Any ideas how to get this thing to hold OD on the dyno? [/QUOTE]
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