seems to me the mapping will be different within the 2 ecm's.
cobb should have 370z mapping by now.
i know you can email them you're map and they will build a tune specific to your ecm firmware version based on mods that you tell them you have.
course you have to have the cobb tuner to download the map file to the tuner from the ecm then upload it to a pc and email it to cobb.
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