I have a new NOS kit for 11+ 6.4 Charger/Challenger.
Box is open and I pulled a few parts from the plastic wrap but I never installed it, everything is brand new. I bought it for my 17 Charger but it never made it under the hood.
Complete kit with 10lb Black bottle, min progressive controller, etc.
This is the kit:

Note: I am selling this personally, as a guy named Mike, this has nothing to do with my day job or account sponsorship :)