Sounds(no pun) like you're more in agreement with ftyler. He has the same setup that you have. Two tubes into only one larger muffler.
I'm running two very quiet stock type oval mufflers, but I still have a little bit of that crappy rappy sound at the top of the gears when I'm on it. I have been thinking about putting a crossover just past the header collectors. I wonder if a crossover just ahead of the mufflers would have the same effect as your single muffler.
