Not sure if the thread originator has a SRT or N/A Crossfire.
I know others have removed the brackets at the radiator support and enlarged the intake tubes - that and a couple of K&N filters and you should be on your way for less then $100
It's just been so long since I owned my Limited that I don't remember if it had these support brackets.
Personally - I would not want my air filter hanging out there constantly getting pepperd by bugs, road spew and rain.....when I wash my car and clean off all the bugs from the front bumper, grill and radiator I can just imagine....