From all of the research I have done it seems that the blastin bob mufflers are about the same as flowmasters. I haven't read any bad reviews on his products or customer service, everyone seems to be pretty happy. As far as the resonators go, most people say the flowmasters with the resos on is barely louder than stock and people end up chopping them off anyway. The kicker is you have the 5.7 with the MDS and most people say there is drone with the systems. Depending on the person, some hate it, some love it. If you go that route you might as well invest in a predator to turn off the MDS and that should help with the drone.
I had a 300C with the 5.7 and messed with the exhaust a little but did not have this set up. The drone did not bother me much but drove everyone one else crazy. Try humming as loud as you can, feel your head vibrating? Now imagine it's your car doing the humming and vibrating in the cab with you, amusing for a second, then gets annoying as hell. You mentioned a wife, so you might want to take the drone into consideration.
If you take off the resonators you might want to consider putting a glass pack or some type of resonated tip. That should ease the drone a bit but not mess with the mean muscle car sound.
I traded my 300 for a charger srt8 and so far all I have done was take off the suitcase muffler but left the resos. I did my research before i removed them and I found mixed reviews. I personally hate it, the raspy sound some describe kills me. My srt sounds like its a V6 trying to sound mean. I am planning on getting blastin bobs plain wrap mufflers and removing the resos. I will do a review and hopefully post some before and after vids.
