Kleinn Air Horns JK220 Horn kit produces a ground shaking 154. 2 dB at 150 PSI. The kit is 100% bolt-on, and requires no drilling or cutting if installed using the factory horn button. The design features a custom mounting bracket for the 2007-18 Jeep JK Wrangler 2 and 4-Dr. Includes mounting bracket, 220 train horn, horn wiring and a horn button. This kit can be used with the Kleinn JL-JK-OBA or JKOBA onboard air systems or any other onboard air system with a minimum 1-gallon tank. Kleinn Air Horns is a U. S. manufacturer of extremely high quality air horns, train horns, complete onboard air and air horn systems. Our focus is to bring the finest quality pneumatic systems and components to the automotive aftermarket – worldwide. We are constantly developing new 100% bolt-on, vehicle-specific systems for today’s most popular vehicles. Kleinn also carries a complete line of air compressors, air tanks and related pneumatic accessories for cars, trucks, SUVs and everything else with a 12- or 24-volt power source.