I wanted to replace my horn and saw many options on the forum. One day, while at Academy, I spotted an Attwood "hidden" marine boat horn and began to think it would work perfectly. It's stainless steel and ABS plastic construction is made for salt water duty and it is rated at only 2 amps, so no relay was required. I bought it and tested it and it was pretty darn loud and has a sound like a large American car. I made a mounting bracket to fit the new horn, but did nothing to alter the original one, in case I wanted to go back to the roadrunner sound. It looks great and will get the attention it deserves when needed. The installation looks like the factory did it, if I do say so myself. The horn can be found on Amazon for $20.00. Note the vibration dampening spring I added to the mounting bracket to reduce the chance of it weakening. I also coated the connections on the horn body with liquid electrical tape (actually black Plastidip) and used heat shrink tubing over the wires. This horn is working out great and looks like it belongs on the bike. Much louder and commands attention.