I guess time will tell. I am not disagreeing, however if it's being marketed as a direct fit / no modification necessary piece, I would have thought they'd install it in a few different cars of each chassis to double check.
I doubt I'll afford either one, but it sure is nice they will be available.
After they are tried and proven a bit I'll likely sell off some of my extra stuff and get one (maybe two?). The thought of 4.30:1 rear gears and still being able to cruise down the highway sure is mouth watering.