Charlie, you didn't say how long the glasspacks are that you are currently running. The longer the muffler the quieter the exhaust will be. The idea of putting mufflers closer to the exhaust exit in conjunction with the current glasspacks will work to "mellow out" the exhaust note a lot. As mentioned earlier you can install resonator tips to help some. Can't wait to see the "Burb" on an Oklahoma run!