Quote:
Originally Posted by phrosty
Nobody knows definitively. I don't think anyone has found it in the software the dealers have (TechStream) so you're probably safe there but that doesn't mean corporate doesn't have something fancier they can do if they're trying to avoid paying for a blown engine under warranty.
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Did some flash tuning to my 03 Ford F250 with the 6.0TD. The consensus was returned it to stock before you took it in to get smogged or to get into the dealer a hundred miles before and they wouldn't know.