Re: New exhaust??
The srt8 headers cannot fit on the 4.7V8. It all depends on how loud you want and how much drone your willing to deal with. Usually the louder the muffler the more drone you will get on the freeway. Running true duals is very tricky. There isn't a whole lot of room for the dual mufflers. You should think about a dual inlet/outlet muffler.
2010 Brilliant Black SRT8: Corsa Cat-back, AFE Stage 2 CAI powder coated black, Toon by Johan, Black powder coated intake, Black powder coated strut bar with red SRT, Red BT Catch Can, Stainless Braided Lines, Red HEMI half covers, Full LED Interior, Carbon Fiber wrapped trim, Carbon fiber badges by Nate, Carbon fiber license plate frame, Custom "SMKDYOU" plate, Black reps, and more to come......