Don’t get us wrong, train horns and air horns are one of the most fun additions to your vehicle that you could have. Many of us have dreamed of being in control of a huge train horn or semi horns ever since we were kids. There is no better feeling than getting a good scare out of someone when they least expect it, but your horn is so much more than a mere toy or novelty. When the difference between life and death is a split-second decision, having a horn loud enough to turn heads can make all the difference.