I upgraded a pair of cheap horns to a set of PIAA85115 horns.
~$50 on Amazon

Here is a short soundcheck with the before and after
[url=YouTube Video]https://www.youtube.com/watch?v=7ZLhalVxQLk[/url]

Don't do your money go get a set of OEM horns for an RT and they are better than that.

I don't want to disappoint you, but If set correctly, the original horns are good.
My original horns sound like the PIAAs but they seem to be louder.

CF

Some of the early naked Ks had a pathetic horn which is what that guy in the vid has and it has had water in it as many of them did.
The wonderful PIAA thing sounds just like a standard K100RT/RS dual horn but I dont think it is as loud.
If you want a realy good one get a Nautilus http://www.ebay.com.au/itm/Stebel-Nautilus-Super-Nova-Chromed-Air-Horn-139dB-12-volt-Car-Bike-Truck-Chrome-/130897161436?pt=AU_Car_Parts_Accessories&hash=item1e7a142cdc
And when you blast someone they know or they are stone deaf.

RicK G wrote:Some of the early naked Ks had a pathetic horn which is what that guy in the vid has and it has had water in it as many of them did.
The wonderful PIAA thing sounds just like a standard K100RT/RS dual horn but I dont think it is as loud.
If you want a realy good one get a Nautilus http://www.ebay.com.au/itm/Stebel-Nautilus-Super-Nova-Chromed-Air-Horn-139dB-12-volt-Car-Bike-Truck-Chrome-/130897161436?pt=AU_Car_Parts_Accessories&hash=item1e7a142cdc
And when you blast someone they know or they are stone deaf.

Actually, the bike came with cheap $8 horns. I looked the model number up on Amazon. I wanted something louder. One of the online magazines reviewed the Stebel and had issues with it burning out on them during testing. The PIAA had a nice sound to it and it was respectibly loud.

What is difficult to tell in the video is that the horn is very loud. I suspect the camera (Canon 5d Mkii) or the rendering software (Adobe Premiere) leveled the audio a bit.

I fitted a Nautilus to my GSA back in 2004. Very loud! The only issue I had with it was after it filled with Fesh-Fesh in Morocco, then riding home in normal UK weather (rain), the Fesh-Fesh solidified and turned into a sort of cement.

In all honesty, it was a waste of money. I think like most people, by the time that I thought about using it the need had passed - apart from riding in Paris where the horn is used more than the brakes.

Now, as long as it squeaks enough to pass the annual MoT test and my pre-test check is the only time I try it, I ignore it.

I have had the Nautilus on my car for about 5 years now. It is louder than the original car horn, but I would say that it is not as good as the twin original horns on the K100RS.

I have a pair of Nautilus horns on my car wired direct from the battery via a relay activated by the horn button and as Rick says when you're blasted by them..... you stay blasted
The two tone fiamms that are on the bike are louder that most car horns and more than adequate

Sorry, I couldn't hear you. :cyclops: