Well, I think I'll clarify my own experience a bit. I do think the engine was a bit more peppy with the tunes, but it was the shifting of the gears I wasn't happy with.

I think Matt brings up a good point. Across the years the hemi has changed just from the factory. The factory tune probably changed as well. I wonder what this means for aftermarket programming as well. It's also the reason I ask for the experience of those who have the 4.7L. With a different engine and different tune altogether, their experience may be much different.



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