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Hey
I have a 2012 Colorado 4 cylinder that I am putting a 6.2 in. The factory ecm is a 12636659. According so current performances web site the 12636659 can?t be flashed with v8 software but the...

I am doing the same swap in a 2012. So if I understand your post correctly, If I installed a 6l80 with a 2012 techm and 2012 calibration it will work fine with the 2012 E67?

Hey
I have been reading over all of your threads since I am doing just about the same swap and don?t see the final bits of info. I have a 2012 Colorado with a factory I4 engine. I am dropping in a...