Thanks for the reply. Unpluging the Gryphon and removing the cord for smog doesn't do anything to the tunes on the truck? I'm guessing then the only reason the Gryphon stays plugged in after the tunes are downloaded is for the real time feedback of engine systems? Sorry, but I've never used a tuner before.
So, it sounds like I'm just looking at the Gotts and a Gryphon.
Touching on gears and tires, changing either will not have any affect on how the custom tunes are written for the truck?
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