I have a chance to buy an Edge Evolution (the old style display, not a CS or CTS) for a good price. I have an EFI Live tune loaded just for the CEL because i have my EGR deleted. A buddy of mine did it for me but wasn`t comfortable tuning my truck. My question is will the Edge screw up my EFI tune if i want to use one of the Edge tunes, say if i`m towing