In my previous thread (http://www.lincolnsclub.org/dcforum/DCForumID9/88.html) I had a center exit setup with a single Magnaflow dual-in/dual-out muffler and had noted the drone as too intrusive. I've since added the Hooker Aero Chamber mufflers at the end. New pics and sounds are on my website under Custom Exhaust: http://www.mark8.org/users/manson73
The drone is still audible at 1200-1500rpms, but no longer intrusive. You really have to be listening for it to know it's there. I'm totally satisfied with this setup. Total investment was $205 in parts and $280 in labor. The labor would have been less if I had went with the rear mufflers initially and not fooled around with the center exit setup.
http://www.mark8.org/users/manson73/sigburnout.JPG
The drone is still audible at 1200-1500rpms, but no longer intrusive. You really have to be listening for it to know it's there. I'm totally satisfied with this setup. Total investment was $205 in parts and $280 in labor. The labor would have been less if I had went with the rear mufflers initially and not fooled around with the center exit setup.
http://www.mark8.org/users/manson73/sigburnout.JPG