Good to know, i really think its a trans issue - wish they would address, just need to drop the kickdown for passing gear or prevent early up shift. Added Pypes race pro cat back this weekend and helped quite a bit with low end torque, also cut back on throttle boost as I think there's a bit built ...

I'm having nearly identical issues with my 2011 RT AWD.

Question #1 - is a neg. number richer fuel?

#2 Also, with standard Diablo tune and +20% throttle on my 2011 Charger R/T AWD, I have a big flat spot in the mid throttle, 30-60 mph accel (merge speeds) almost like passing gear won't register/kick down. If I give more throttle 3/4+, I rev rapidly and ...