the horn needs a compressor and a hose. Its ...
925476
the horn needs a compressor and a hose. Its not just hook it up and go. It needs more then what you buy!!  DO NOT BUY!!!
1300618
Very loud and "tuneful" horn, but many passenger cars may technically require rewiring with heavier gauge wiring and a beefier (included) relay. May not be a drop-in replacement for you.
4636687
A little more ground wire for the button assembly would have been appreciated but it was enough to do the job. The horn is pretty loud but not overbearing and has been turning heads since I mounted it the other day. As someone who has done wiring jobs in vehicles for various reasons before this was a snap. However to make things easy on yourself you may want to get a z bracket or a 90 degree bracket depending where you mount it. That was without a doubt the hardest part though and I am very pleased. Also make sure that wherever you are going to mount it, it MUST be horizontal or it will sound very off. With 2 90 degree brackets I mounted it just forward of the brake booster and in next to the battery in my 2010 Ford Ranger.
3252896
This is a great low end air horn kit. I say low end because it's nothing like a real train horn... and the trumpets are cheap plastic. So I would not mount these on the outside of a vehicle that goes offroad somewhere where limbs or brush may be encountered. But they are fine behind the grill. They make a nice dual tone big truck sound, not like the smaller kits which are shrill. They come with two trumpets, a compressor, a relay, a tubing Y, and some clear air hose.

There are some things you need to know about this type of horn system. First off, you need a little room to install it. The trumpets are around a foot long and take up a some space. Also, you need to install them pointing straight down so water does not get into them and ruin them. If you don't point them down, they will have a short life. I've been through this several times with other sets. Take these thoughts into account and don't order this item if you can not accommodate them. Also, get someone to install it for you if you don't under stand how a relay works or if you are good at using basic hand tools.

See [...] if you need help with the relay. Pin 30 goes to the positive battery terminal. Pin 87 goes to the horns. Pin 86 goes to ground. Original horn wire goes to pin 85. I think the compressor requires a ground as well. But that's all there is to the electrical part if you have a working horn wire under the hood already.
2508791
Is good just the horn is very noise is heavy good desing and there have diferents inputs i reconended to buy but is expensive i buy for less price
3975246
Other than being loud, this compressor does all I need and more.
1255415
This was shipped in two parts and they don't fit together that well.  Luckily it still works without the horn.
1721136
Decent compressor, but the hose and AC cord are too short.  The DC cord is very long, but I guess that's for filling up tires on the road.

The gauge is not very accurate at all.  It destroyed a bike tube the first time I used it.
3166514
It needs another part for the system to work with existing system.  It needs a "nipple" whereby the hose from compressor can be hooked up to the manifold.  I looked in three cities and couldn't find one.  I wrote the company over a month ago and still haven't recieved a reply.  It is now simply collecting dust because I can't use it and no one will contact me about it.
2318824
I had a Wolo horn and thought it was loud, this horn sounds like it is a 18 wheeler.  You will get the attention needed for your motorcycle, when you have to use a horn.
4387261
You might need to change your horn fuse to a 15 or 20...it draws more amps. Sounds ok...but I can hear the air pump motor..it's kinda loud
4894297
Bought this for my 2 year old son, a Thomas fan.  The horn replaced a fragile plastic horn that broke when his bike fell over.  The new horn doesn't sound like a typical squeeze horn; it sounds like a dog's squeaky toy, and it drives my dog crazy.  It doesn't matter because he probably won't squeak it again; my daughter has had a horn on her bike for two years and I think it was only squeaked the first couple days she had it.  My son just wants a horn because his sister has one, so I didn't see the point of spending $15 or $20 for one.  It's just a decoration, really, and the cheaper the better.

The water bottle smells like PVC, and my wife won't let my kids drink out of it.  And there's no bracket to attach it to the bike.  Again, it doesn't matter, I didn't buy the set for the bottle, and they'll play with it in the bath and shower.

The license plate is just as cheap, and came slightly damaged.  It takes a bit of planning to get the name on it straight with the flimsy letters, but it looks fine for what it is.  My son likes it, and that's all that matters.  I did modify the attachment from the zip ties provided so it hung better under the seat.

If the items last a year without breaking off, they'll have been worth it for me and my son.
116478
The pump does not put out enough pressure to make 150db. Its louder if you blow in the hose but it works ok for the price
2609501
Just received my dixie horn today. My horns came in black. It came with all of the screws and bolts for the horns and compressor. Doesn't have a bracket though. I did do some fun installation and got the compressor and 3 of the horns between the grill and the metal plate. Then on the other side I put the other 2 under the bonnet. I thought I would use some english. So i mean hood. It also came with 90 inches of tubing, the compressor and five horns. It has a bosh style relay came with it. wish i would've known because before i bought this i installed the switch so it would just plug in. so i already bought one but i have a spare now. the horns and compressor are color coded so they are simple to get right. but it took me about 5 hours to wire up a switch with a relay so i guess it was nice to have that already in there. cause it took me a while because i didn't use any other brackets other than the ones that were on my truck when it was build. took me about 4 hours of tinkering around to find out where to put them.  I have the hoses at 18 inches right now because that is the farthest out one of the horns is away from the compressor. the pitch is a little higher than the original. I think it may be because of the length of my hoses though. doesn't bother me. at least it is not as bad as wolo. even though wolo is the real brand of dixie.  it is pretty humorous because i drive an 89 ford ranger. so it is a dinky truck with a big dixie horn. I love it. Go with fiamm and you'll love it too.
1535427
Only been installed two months and compressor stopped working when it did work I powered a 3' train horn advise for future buyers install this in your cab/trunk so it's not exposed to the elements it's can't hold up to them
1772464
I'm not as happy with because it is no louder than my regular truck horn. i will be replacing it as soon as i get an air compressor system installed on my truck. They work good but not loud enough.
4429382
The horn was not loud as expected. It is very heavy once batteries are installed. The horn did not meet my expectations.