Update: I bought an IMCO Performance 50 muffler as well. Did some research the SRT8 Jeep guys are raving about this muffler, its a cross between the Flow 40 and 50 so I figured why not give both a try and see what I like. I know Im dumping $$$ into this but I want the right sound so Ill try both and go from there. The specs on the IMCO is 17" long, like the Flow 50, but everything else measures like the 40. I found a video of it on the 05 Ram HEMI to it should sound similar. Guess and check til I get it how I want it!!
http://video.filestube.com/watch,45c...uffler-in.html