340 muffler decision

While we are on the topic I'm curious what others are running. I'm looking at going 3" exhaust with either dynomax bullets or flowmaster 10 series delta force (the race mufflers, not the delta flow their regular series).

Wondering if anyone has run these or has any soundclips? I found one of the 10 series delta force and they sound tough.

[ame="https://www.youtube.com/watch?v=fuWaBbgkJyQ"]71 340 duster. Flowmaster 10 - YouTube[/ame]

But the roadkill muscle truck runs the dynomax bullets and that thing sounds like heaven.