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Hello, I have a 06 cummins with efi live currently on the truck. Can I go in with hp tuners and change the tire size with out messing up the efi live tuning

Thank you.

Thank you for the quick reply. So it's a copy and not the actual tune? So it can start and be driven with the tune copied.

Hello all, I am brand new to tuning. My first question is when you read or I guess copy the stock tune. Does it actually pull the tune out of the ecu, or is it just a copy? Will the vehicle still run...