Suggestions for muscle car sound muffler without drone

I have TTI headers on my 318. with the TTI 2.5" x-pipe exhaust, and flowmaster super 44's... but it dumps in front of the rear axle.

couple vids.

Drive by with throttle:
[ame="http://www.youtube.com/watch?v=TgbvRSlGs_o&feature=plcp"]MVI 0132 - YouTube[/ame]

drive by cruising:
[ame="http://www.youtube.com/watch?v=rQX9xGYVf5M"]Drive by sound - YouTube[/ame]

inside car:
[ame="http://www.youtube.com/watch?v=1jxG71P_a20"]MVI 0134 - YouTube[/ame]