Duramax TCM Tuning

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  • Regular price $400.00


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TCM Tuning: Enjoy increased shift points and improved lock up strategy based on your fuel/air set up. Add second gear start for drag racing in 4x4 high and 3rd or 4th gear start in 4x4 low for sled pulling, all in the same tune. We will help keep your motor and trans alive and well for events to come!