I bought my 16 Challenger HC in August of 18 with only 878 miles on it.  Once I reached 1500 miles then I started opening it up.  I thought "this is what 650+ ft lbs of torque feels like"?  DISAPPOINTING!!!!!  Learned about the drive by wire system and how the pedal Commander can help that sluggish feeling.  I took a chance and bought it from Amazon.  PC31.  Installed it as soon as I got it.  Took 10 minutes to install.  It's a different car.  Holy crap, the throttle response is incredible.  This is the way is should feel.  I'm very happy with it.  Do it.  I promise you won't be disappointed.