Carfka Air Train Horn Kit for Truck Car with Air Compressor, Super Loud 150DB 12V Electric Trains Horns for Vehicles, Air Horn Complete Kits for Easy to Install (Dual, Black)

The media could not be loaded.  the install of this horn is pretty simple as long as you follow the directions and have some knowledge of how a relay works.the horn is pretty loud for this little set up but if your expecting it to be like the $130+ train horns with big compressors you're going to set yourself up for disappointment automatically. but for less than $30 its amazing.the problem i had was right out of the box there seems to be issue with either the horn or the compressor. about 60-70% of the time i hit the switch the horn comes out as a different tone. not as loud and seems to be coming out of only one horn.i have attached a video where the two horn tones happen consecutivelyim giving 3 stars because im going to hope a new horn and compressor fixes. will update accordingly

Installing it was very easy. Disconnected old horn, plugged in the coil for the relay. Wired the hot from the relay contact to an always ON +12Vdc and Ground from the compressor to a solid ground. Upon initial test, horn sounded inconsistently. Shortened the air lines and the sound quality and volume improved immensely. I think an engineer could probably calculate the maximum length of air line that you shouldn't exceed because the directions didn't describe it, as far as i recall. Now to see how long the horn/compressor/relay/wiring lasts.

When I went to connect the wiring harness sent with the kit, nothing happened, and I followed the diagram exactly. It's not a bad horn or compressor, and I ended up wiring my own harness for the horn by taking out the relay and running the compressor to the fuse that the kit came with, and running that to a button I found at AutoZone. That's another reason I had to make my own wiring harness, I couldn't find a single button online, or in any stores in my area. Long story short, It's not a bad compressor or horn and it is loud, but I wouldn't recommend to anyone who doesn't know about wiring horns, light bars, etc. I still don't really feel comfortable putting the horn in my car without the relay, because I've read horror stories of wiring harnesses without relays catching trucks on fire. But it isn't all bad, because I sure have scared a couple of buddies by hooking it up to a motorcycle battery in my garage.

I was sick of people sitting at the traffic lights testing. My old 1964 Chevy horn was not doing the job, so I bought this. Now I honk, and people look around for a sick Moose. It is a bit louder than the stock horn, and sure does look cool so I will keep it.

I purchased this horn as is show in picture I received single horn, it works somewhat loud. Original horn on my pick truck is louder than this one. Don’t waste your $$$

Sorely disappointed. Took a long time to figure out the correct wiring because everything I found online shows how to wore it to your factory horn. I wanted to wire it independently on its own switch. I tested it a couple times and it seemed ok. Once fully installed and wired it sounds like a sick duck quacking under water. It must be the compressor, because if I blow into the horns it sounds better.

Finally found what I was looking for in a set of horns that will Blow you away ... Look no further .. Can't wait to try it out on someone texting and cutting me off on the road. These are the Real Deal... Simply Love these horns !!!!!!!!!!!

Does not sound like a train! Loud but not a great sound. It’s not deep. It’s higher pitched. It’s ok but not a train