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Originally Posted by cooper1965
Yeah, I've read about the customer service. I don't intend to need them though. Just the canned tune. As far as locking the ECM. It will only be locked while Trifecta tuned. I can revert back to stock programming anytime at work, even if I have to load another Vin #. But I the heads up on those issues!
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I'm not trying to dissuade but we've seen people make questionable decisions with plenty of research done for them and end up regretting it. RPM is one prime example of that yet people keep hitting them up... You'll likely need to do just that switch the VIN# if you can't get ahold of them.