![]() Only thing is that I do my own tuning instead of having to send it to someone else. I ever switched back and forth between hp and smartyUDC a few times when I first got it. My truck is an 04.5 and within the last year it got smarty revo software, then upgraded to UDC, then to HPTUNERS with no vin or serial number issues. All that I have ever needed to do with my HPTuners is just hook it to the truck and press the upload file button to get it to retrieve a good stock file from the truck, but this must be done when the truck is set to stock.
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