This is a retarded question .... a pedal commander does nothing but change the input signal from the pedal... and has shown to fuck up the computer on some peoples trucks .... a dyno tune will actually change power levels and boost levels
I went a different route with the JMS Boost & Peddle Max. I've had no issues with it, i'm at 20k miles and put these in almost a year ago. Tune vs. electronic trickery, yes...... I didn't want to do a tune but something that was a bit more warranty friendly and easily removable. This isn't my only upgraded i'm happy with where i'm sitting at the moment with no tune but still at 570H/630T and it's all warranty friendly. I've made multiple posts on my upgrades here but you can reach out direct if you want more info.....