Boxter horn is lame, anyone upgrade?

[algiorda]

I commute on one of the worst roads in the nation everyday and aggressive drivers barely see me with their huge SUV's. When I honk my horn, it's almost laughable it sounds like a kitty kar.

Has anyone upgraded the horn(s) and was it legal?

Years ago I had air horns in my Fiat 124, and they were the best. It used to scare the crap out of people. Needless to say, DOT phased them out eventually.