Need to make a big noise, but only have a little room? These train horns can fit in almost any vehicle, but deliver the big sound you need. Don't be fooled by their size ... they may be small but they pack a punch that can rival any air horn out there. Easy to fit, glistening chrome finishing and tuned train horn sound; these horns are the complete package. Our specialized compressor kits will make you horns really sing. All of our compressor systems come complete with a 12 volt compressor, air tank, pressure switch and mounting hardware. These compressor kits are built for performance and easy installation.