Tundra 2UZ-FE Question

I see on HPTuners vehicle support it lists that there is support for a 5.7L Tundra but nothing for a 4.7L, is there a reason for this?
I have a customer's truck, 2008 4.7L Tundra, that he wants to mess around with some of the shift points and adjust the speedo. I have not had any time to hook it up yet as I need to pull the engine this week. Is it possible to do this or am I SOL?

I would assume that the PCMs are the same between the two, just not sure what the disparity is. Thanks guys

Just got a response from support saying that they are not looking to offer support for the ECU. That sucks but it is what it is.

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