Originally posted by: iamwiz82
You need to hook up an air compressor, tank, the horns, and all the electrical. If you do not do the tank, you will have to wait for the line to pressurize, meaning any leaks and your horn will go off after a delay.
Originally posted by: mugs
What kind of car do you have? My Civic came with the crappiest horn I've ever heard. Not only is it weak, it has a funny sound to it. I replaced it with a Freeway Blaster - not an air horn, but it's plenty loud enough for me.