Quote:
Originally Posted by Sax1031
What if you were to change the tranny gearing? Do you know if that would require EPA re-cert?
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Yes, it would as it would change the scenario for every car, as some here have already discussed. Well, to be honest, if it was an
optional gear set in the transmission that didn't change anything else about the car I'm not sure if they would have to. I'll have to check into that with some old friends.