Kleinn Air Horns specializes in making vehicle-specific horn systems that bolt on for quick and easy installation. Upgrade your factory horn to an air horn with a Kleinn air horn kit. We also stock Kleinn train horns and train horn accessories. Order a complete horn and onboard air system kit that allows you to easily mount an air tank and compressor and install an air horn. These kits make it possible for you to honk your aftermarket horn and inflate your tires. You can also purchase separate air and horn components and hardware, including a complete wiring kit or tire inflation kit.