Yes, I know these guys very well, located at Seven hills. No problems with installation, quality of work or warranty!
They started this off with the Jeep SRT and have badges to suit all Mopars, here and in the States. I am part of the SRT Club here in Sydney (whilst still looking for my Mustang!) and have one my car, as do must members! Usually they will hold an 'installation night', where you can organise several cars to be done at the same time! Visit the website and have a look, they can do the front and the back as well. Let me know if you need any further info....