I have 19gm DPS in my '13 400; I don't recall noticing this immediately after install, but now I'm reaching nearly 8000 (!) rpm before the sliders "shift" and the rpm's drop. Still a relaxed 6200 @ 75 mph indicated, so as long as I'm at freeway speeds, easy-breezy, no prob. But wow, cruising streets I'm wringing the crap out of her...WAY too high rpm's to manage only 40-50mph. What th'...??