That’s interesting. I have the high amp aux wiring but standard 2 green dots front springs.To be honest I'm not entirely sure. My car has a tow hitch mount installed from factory up front behind the license plate and the dealer told me that it had a slightly stiffer suspension because of that. They told me that trucks that came with the winch option from factory has the same suspension and that it is different from cars not prewired for the winch.
He could be full of it, I haven't really verified what the said.