Are the raw pcm's all the same? Is it just the programmed tables and 'operating system' that makes them different. It was questioned at one point that any GM V6 PCM could be re-written for the purpose you needed. ie: a V6 malibu programmed to L67 spec.
In many cases you'll find this but you have to verify that both vehicles use the same part # VCM/PCM to be sure. If the part #'s are the same, then you're good to go.
We got this guy Not Sure, ...
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