I know the pipes are different sizes (2.25 vs 2.75 for the SRT & 3.0 for the Hellcats). They will bolt up, but you will need someone to fab an adapter.
Unless you have access to a cheap, used one someone is taking off I'd just pony up for the Corsa Sport Cat Back or Borla S-Type. Or go 'low cost' & get the Blast'in Bob's axle back's (loved them on my R/T).