mufflers

This may Sound a little odd... But What if I don't my duster to sound like the regular "Bass rumble" but more like one of these:

[ame="http://www.youtube.com/watch?v=mOsnlsRhJgg"]YouTube- Dyno Test of 2009 Aston Martin V8 Vantage[/ame]
[ame="http://www.youtube.com/watch?v=7P1PL5-tyYA"]YouTube- CLK63 AMG Black Series Dyno Run[/ame]
[ame="http://www.youtube.com/watch?v=-SEUyM117kw"]YouTube- 2008 XKR Dyno runs after Performance Upgrades[/ame]

With a more baritone howl to it? What kind of mufflers do you think I should run? I know about a lot of things.. But I don't have a lot of experience with mufflers.

Thanks!