Bests & Worsts Reviews from Amazon

I used this to install a Wolo Model 519 Bad Boy horn on an Ultra Classic. It's true as others have said that you don't really need this harness. The Bad Boy comes with a relay so you can buy some wire and do it yourself. But this harness is a true time saver, especially if your horn is mounted on the frame on the left side of the bike, in traditional Harley position. The harness has one set of wires to plug into the existing horn wires without having to reroute them, and another set from the "hot" side of the relay to go to the horn. All connectors are pre-wired, making this truly plug-and-play. Not strictly necessary, but a huge time saver and fit on my Harley Ultra Classic like it was made for the bike.