|as most motorcyclist know, the factory installed horns are typically garbage. they're not really intended for safety, just compliance with NHTSA. a horn that sounds like a feeble road-runner imitation, i.e., meep-meep, is useless in the real world when contending with SUV-driving/texting/mobile-phoning idiots on our roads.
i decided to take this into my own hands and wired in a matched set of hi/lo tone Fiamm air-horns that produce a claimed 130db of ear-crushing volume. what you dont see in this photo-essay is that this project necessitated adding a high-current electrical relay to handle the power-draw these horns require to produce their prodigous output! this took the better part of an afternoon, as i did this right with soldered connections with heat-shrink tubing and the wires routed neat and tidy to look factory.