I know about the OS differences and cross flashing........ My question is, with the T43 are there hardware differences like the E38 or are they all the same? I ask that for the simple reason of full flashing with an MDI. I have a customer with a race rig and 2015 DI 4.3 / 6L80. He would like a spare 6L80 ready to rock. Finding one from another DI rig has been an issue.