I was out in fall 2013, mostly thanks to an excellent-turned-to-trash contract house, so I only know what I know.

My Team's efforts towards some kind of an information package is represented Here, which is a link to a document that was originally delivered with the car.

But....the older "You finish it" Drag Pak is so far removed from a 2015, I'd have to throw that whole thing away and assume nothing applies.

It's hard to imagine that expensive of a product being delivered without any info, but it is Mopar after all.....

I know a Mopar retired program mgr, and a Roush manager who moved on to Ford contract work, then went back to Roush....not sure if he has his old records.
I can ask those guys, if that'd help? Not sure if they would remember or know anyone.

Alot of people have left the company/companies involved since 2015-16 and a search could be difficult.