I have the Wolo
Loud Ones electric horns on my '03 400, they are the same horns as Fiamm's
Freeway Blasters:
Believe me they get people's attention, they are the same horns that Mercedes supplied as a $250 "fanfare horns" option on my '98 SL500:
One advantage to the electric horns (as opposed to the electric/air horns) is that they require much less power. The
Loud Ones horns only need 18 A peak and just a 10 A average:
The Wolo
Bad Boy (same as the Stebel
Nautilus and many others) wants 36 A at start up and 18 A after that:
For just 3 dB more (I.e. barely noticeable) noise...