Equip your vehicle with the Kleinn 730 direct bolt-on Demon triple black spun steel train horn system, featuring three tuned, oversized spun steel trumpets measuring 18.25 inches, 14.75 inches, and 10.5 inches in length to deliver the loudest, largest, and most aggressive train horn blast on the market. Engineered for universal application and maximum durability in the harshest environments, this premium triple horn configuration is finished in Kleinn's exclusive XCR 2.0 satin black corrosion-resistant coating to easily withstand heat, sun, UV rays, and salt spray. The innovative flat-rack detachable design allows the trumpets to be removed from the bracket and mounted individually for ultimate installation flexibility in vehicles with unique spatial constraints. The high-performance kit comes equipped with a heavy-duty Vortex 7 12-volt electronic brass body solenoid valve to ensure extreme airflow and an earth-shaking, authentic railcar blast of up to 157.8 decibels right out of the box. Designed for a clean, professional setup, this complete package requires an onboard pressurized air system and can be further enhanced by adding the part number 6890 Ultra BlastMaster valve upgrade kit to unleash a devastating 159.6 decibels.