GoWesty used to sell the one I have, but apparently no longer.
http://www.youtube.com/watch?v=kioeh1yNJpg
I think they are Hella twintone.
bob
On Aug 14, 2013, at 9:54 PM, Jim Arnott <jrasite@EONI.COM> wrote:

If you're not running a stock eep-eep horn, what ARE you running? I'm thinking about upgrading.

Jim