Where to mount train horns on a truck for the loudest sound

Choosing exactly where to mount train horns on a truck is usually the hardest part of the whole install process. You've got this massive, gleaming set of trumpets and a heavy air tank, and suddenly your engine bay looks a lot smaller than it did when you clicked "buy." It's not just about finding a gap where they'll fit; you have to think about sound projection, keeping them safe from road grime, and making sure you aren't drilling into anything vital like a fuel line or a wiring harness. ...

February 18, 2026 · 7 min · Lawrence Savino