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Alright it let me write it even with the different OS.

Found a couple of tables that were slightly different between the 2 OSs

Thanks for your input guys!

I have read a copy out of it with the new OS.

Will I have to pay for more credits when writing it? Every calibration number is the same but main Os is different.

Hoping not as this will be the...

Hi everyone,

First time posting here.
I have a 2012 Hsv with an LS3 and e38 that had a tune on it, only minor fuel and spark adjustments as the motor is standard.

After a recent trip to the...