I know all the "cool sound horns" seem like a great idea... but I tell you what... put one on, you have the urge to excessively use your horn... In the long run, IMO you look like a tard...
I'm playing devils advocate but seriously... get standard car horns, the old fashion horn, the boat, train, semi truck, 100+ musical horns all sound neat but really, do you want to be "that guy"?
My stock horn randomly works loud, not so loud, quiet... not sure why but I'm assuming it got wet or just is a junk part (not being rude, but like many on the cruisers) and is going out... I like the idea of the f150 horns, or any loud stock replacement horns... but I would NEVER touch any of the above mentioned "cartoonish, hey look at me noise horns"... Just asking to have it screwed with, get cop attention, simply piss people off, or look like a tard..

not trying to offend, just random thoughts and past experience...
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2005, Cool Vanilla, Slate Grey interior, Turbo Vert'
Iridium plugs, K&N Typhoon intake..
Wrapped up in 16" Perelli rubber...
Viper remote start alarm system, JVC AVX-820 (7" LCD, AM/FM/CD/DVD/Bluetooth), 10" rockford fosgate with a 300w amp...
CLICKY, Jered's car domain page