Hello BigHeavy and welcome.
I am not, by far, the expert here but I went with the Predator.
From what I understand, both of the programmers will remove the "torque-managment" and increase performance BUT the Predator allows you to scan and reset codes. I found this helpful when I had a gas cap that was leaking and giving me a "check engine" light. I used the Predator to see what was giving me the light thus saving me a trip to the dealership. I fixed the problem and cleared the code.
Just my .02...good luck
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