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The Alfa tool is not for tuning. It's purpose is for diagnostics and enabling and disabling settings it the BCM. It isn't capable of changing settings it the PCM. The App is $49. The tool has proven itself very safe on the 4th gen trucks from 13 to 18 plus the 19 and 20 Classics as long as you pay attention to what you're doing and ask questions if you don't know. As far as the 5th gen trucks go I'm not sure how effective or safe the tool is on them. All the trucks from 18 up will need the security bypass cable from KaodTech.com to be able to connect to the BCM.Do you have that bypass security thing installed for any 2019 and new?
I'm just asking, I was hoping to use the AlfaOBD to do some performance tuning but it sounds like it is a guessing game as to what each feature does to your truck.
I know the app only $20 but I'm more worried about the $50K truck on the other end.