A21 Front elastomeric bumper group also triggered left/right chrome racing mirrors (irrespective of model - 'Cuda, Barracuda, Gran Coupe)

A22 Front/rear elastomeric bumper group triggered left/right painted racing mirrors as well as rear tail panel blackout with the M88 tail moulding.

For any Barracudas that I've seen equipped with A22, they have all had the thin, 4-piece ''Cuda' style stainless tailpanel moulding with the blackout

For Gran Coupe equipped with A22, I don't know if the 3-piece aluminum tail mouldings (along back of quarters and decklid) are replaced with the 4-piece moulding, or whether they are left the same.

Ditto for whether the tailpanel remains in Astrotone silver (argent) or whether it goes black as well.

It's also possible that A22 would also trigger some sort of grille trim such as redlines, but that is speculation on my part - I have not seen enough untouched cars to back that up.