No you can not use it.It is matched to the Mach 1 and will only work with it.Also the tune for the Mach would mess up your GT bad if it would work.
You would have to return the Mach to the stock tune and then send it in to be programed for your GT,which would make it so it could'nt be used on the Mach.
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2003 Cobra SOLD
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