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whats up

Leigh Paquette said:
I can't find the stock file I'm looking for here is my vin...
1GT120E87FF652889
Click to expand...
I haven't been able to find any of the 15.5+ tune files for free out there. Mid year 15 GM changed TCM's from an ALLISON A50 to a HITACHI T87 TCM. When they made this change, they also changed the ECM OS(guessing the new TCM uses a different data protocol). You can buy stock tune files from PPEI and RIDGERUNNER, but thats teh only way I know to get a stock tune file for one unless you can find somebody willing to share one.
 
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