Yes, I have a buddy with a 2016 Charger STX that wants launch control. He gets the display on the EVIC but it does not work (gives no instruction to hold the brake and step on the gas) and that is because you need the correct chassis type to get the ABS to cooperate. I have searched the web and there is zero info on chassis types although alfaobd seems to add sales codes to some of the numbers which help identify some option for that chassis number but it still is a crap shoot. I guess you could go thru and try every number until it works but my fear is you can eventually brick either the ABS or BCM doing so.
For example, for chassis type 34 alfa shows the following sales codes (5ZR + BR2 + SDB). Using this link you can find out what the sales code means:
http://starparts.chrysler.com/starlibrary/reference_docs/salescode.pdf
5ZR = 4 door (tells me it is not a challenger)
BR2 = Brakes-15"-Disc/Disc W/Abs Lc-4 (honestly does not tell me much)
SDB = Heavy Duty Suspension (tells me it most likely has STP)
So as you can see not much to go on. Best way to find the right chassis type is to find someone with the STP option and ask for a read of the BCM.
Thanks again!