[Chutsk10]

That is the wrong one and as far as I know it is NOT a direct fit and not sure if it fits at all.

This is the one to use (no pic but part #): SRT8 Charger Rear Diffuser panel

Pic:

 

[Chutsk10]

This is the part number they list on MoparSupercenter and this number was on the box the diffuser came in: 1BQ42RXFAA

But for some reason the part number on my diffuser itself is: 1BQ42TRMAA

Try them both and see what they can find.