Mufflers Without a Drone
What are mufflers? :)
Honestly though I have flowmasters 40s on my swinger. I am not the biggest fan of them though over all I just don't like the sound and I'm pretty sure they had a drone but it's been years probably since I had my cut outs capped.
On my mustang I have slp loudmouths. They are loud and sound great with the 4.6 but I have never heard them on another engine. From what you say you want though I would guess they are too loud.