Info.Request.

From the factory they use 2 resonators before the axle (they look like a turbo muffler) and 2 mufflers on either side of the fuel tank (round cases) Most people will just run 2 mufflers were the resonators use to go.

I would run a nice 2.5" system with an H pipe. Mufflers will depend on what you feel quiet is. I have 3" flowmasters on mine and I dont think its that loud personally but my nieghbor doesnt care for it.

Remember the longer the muffler the quieter it will be. You may want to look at the Dynomaxx Super Turbo. The long case versions are called "Hemi" mufflers.