Post what exhaust you think all sportsters should be running, what are the loudest meanest sounding pipes out there.
The loudest and meanest aren't always the best, when I first bought my Sporty I got the Cycle Shack slip-ons, those were "hell loud", but after a few days of riding it with them on I got rid of them too annoying and only a matter of time until the cops pull you over.
I'd go for either the Hooker Troublemakers or the V&H Short Shots:
Troublemakers:
Short Shots: