Air Horns For Royal Star *1996 & Newer.  These air horns give a loud warning blast of 128 decibels. Triple plated chrome trumpets mount to the bolts near the swing arm. Trumpets mount inward on the muffler just below the swing arm. Compressor mounts directly behind the stock horn. May or may not use stock horn. Virtually unseen, but same life saving decibel level.

*1996 Royal Stars with 4 Exhaust pipes need to modify the horn brackets for exact fitment.*

The air compressor creates instant air pressure to the horns. Since the pressure is created so fast there is no need for a storage tank as on Semi Trucks and RVs. Although the pressure is very low (12-15 psi) it delivers a large volume of air (3 CFM or cubic feet per minute). This low-pressure high volume air supply causes the diaphragm inside the horn to vibrate at a high rate of speed or *frequency* the exact speed at which it vibrates is varied by the length of the horn or trumpet.

Together the horn set produces an extremely loud 128-decibel warning blast. This is approximately 4 times louder than most electric motorcycle horns, which usually rate at 87 decibels.

View Installation Guide