07-19-2011, 09:36 AM
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Administrator
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Join Date: Jul 2004
Location: Wilton, CA.
Posts: 13,301
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they all do the same, though they may not advertise it. GM has been able to track re-flashes of the pcms for a few years now; even if you remove the tune and reflash to stock they can still see it was flashed with a non-factory tune or mod.
I don't blame them. I've modded my new vehicles and would never expect the factory powertrain warranty to be in effect afterwards.
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