I've heard a lot of loud pipes, and I have to agree with Drew. Those Samson fishtails are about the loudest and most annoying pipes I've heard. Second most annoying was a bike with slip-on Thunderheader Thundercones with Bassani true dual headers. It sounded like crap.

Didn't make anywhere near the music that comes out of a Thunderheader 2-1. It's not always about how loud it is, but the aural quality of the sound. A true Thunderheader just sounds badass, whether you're riding it or you hear one roll by...