Hella Twin Supertone Horn Kit

Stock horns on most vehicles sound weak — a polite beep that barely cuts through traffic noise. Hella's Twin Supertone kit replaces that with a pair of horns producing 118 dB across two frequencies: a deep 300 Hz low tone and a sharp 500 Hz high tone that combine into a full, aggressive sound.

Each horn measures 4.675 inches in diameter and 2.125 inches deep, compact enough to fit behind most grilles and bumpers. Hella uses weather-resistant housing and Teflon pill protection against humidity, so the horns hold up through rain, road salt, and temperature swings. At 2 x 66 watts of power draw, you will want the included relay to handle the load rather than running everything through the factory horn circuit. The kit comes with both horns, a relay, and wiring instructions.

Installation is straightforward if you have basic wiring knowledge — mount the horns, wire through the relay to your battery, and tap into the existing horn trigger wire. This kit is especially popular on Jeep Wranglers, Subarus, and other vehicles where the factory horn is notably underwhelming. Dimensions are 5.1 by 4.9 by 5.6 inches for the boxed kit.