Originally Posted by Alvin
The the stock tune is put back on the computer then yes it is not visible, but it is a stock tune again. If you have a tune still on the computer it is visible by GM at some level. I promise.
Plain and simple.
And we've tuned over 800 E38 ECM's if anyone thinks we don't know the "in's and outs" of this ECM I'd like to ask them how many cars have they tuned?