GAMPRO 12V 135db Dual Trumpet Air Horn with Compressor - Loud and Powerful Car Horn

TBA: Loud when activated but definitely not a train horn works for the price

United States on Sep 21, 2023

Michael Wright: Took an old cordless drill an put the horn in it where it work by the trigger and have blast scarring everyone well worth making the investment

United States on Jul 15, 2023

James: Tone is super high pitched

United States on Mar 30, 2023

GreeDog: I like the loudness of the horn. I had to disassemble part of the front of my truck to install it. The grill. Part of the front body molding. And had to remove the headlight assembly. Then I realized there was no hose shipped with the unit. Luckily, I found some hose to complete the job. Otherwise, I would have had to reassemble everything to go get hose. NOT HAPPY!!
Also, the box it came in was damaged when it arrived but, like so many others have already said, what can I expect for the price? I'll tell you what I would expect. All the parts being in the box.

Canada on Mar 26, 2022

Scooter GuyScooter Guy: I put this little gem in my scooter and I love it!!! Easy to install and worth every penny!
I'm going to put one in every bike I get.

It's awesome how fast cars move out of the way when they think they are going to run over by a TRAIN!!😂

Canada on Oct 28, 2020

Maynard: Horns came with hardware to install. Hardest part for me is to figure out where to install them in my truck. Their universal so you have to figure how and where to mount them. The 3 main parts (2 horns and compressor) all came with nuts and bolts to install them securely. Brackets came for the 2 horns and the relay switch. Also came with wiring diagram and a complete wire set if your planning to use your cars horn button.

There's 2 ways to wire this. First it's a simple circuit, but you will need extra wires and a horn button.
Easiest diagram to follow: car ground (negative pole -) wire (inside cabin) -> horn button (must buy separately) -> button to wire (10 or 12 gauge - must buy separately) running through firewall to negative of compressor -> positive wire of compressor to fuse -> fuse to battery positive terminal. Simple circuit. Circuit is complete when button is pushed. Circuit is protected with 30 amp fuse (came with horn kit). Horn works even the car is off.

2nd wiring option (instructions included in the horn kit) using relay.
Positive battery terminal to red wire with fuse (remove fuse while wiring) to relay switch.
White wire on relay...

United States on Sep 13, 2020

Oshawapilot: Super pleased with this purchase. Yes, the horns themselves are plastic which depending on how you look at it is either a plus or a negative. Personally, I'd rather not have to deal with the inevitable rust on metal horns so this is a positive to me.

The compressor is of good quality and the included wiring harness complete with relays is handy. The end result is a satisfying Ferrari sound which is exactly what I wanted for my motorcycle.

For those saying that these horns are not loud or don't sound right there's a higher than average chance they didn't wire them up properly using the included relay. Trying to use a horn like this with a drastically higher amp draw versus the stock horns on most vehicles will indeed yield poor results - you MUST use the relay to ensure the compressor is getting proper amperage.

Happy with the purchase and would order again.

Canada on May 09, 2020

Unhappy customer: I bought this air horn so my dinky Honda can actually get the attention of any other vehicle that wants to run me off the road. For that purpose, this air horn does that nicely.

However, mounting the compressor to the car was quite a challenge. The main issue is the mounting slot that is cast into the side of the compressor housing and the measly hardware that comes in the packaging.

First, the slot is angled in the inside location so when a bolt is tightened down, it works it's way down the slot and eventually falls out of the slot, effectively unmounting the compressor from the car. I ended up putting a hose clamp around the mounting slot so the bolt couldn't walk down the slot and would stay secure.

Second, there are no lock washers in the kit so you have to crank down on the nuts and bolts to secure the compressor and horns and even then, you're never sure that the nuts aren't going to come loose and something will either start rattling or fall off. I ended up replacing the bolt with a longer one, installed lock washers and secured the grounding wire with a nylock nut.

Third, the wimpy brackets that come in the kit leave a lot to be desired. When I...

United States on Mar 11, 2020

TooGypsy: I have bought many other horns on Amazon and this one by far has lasted the longest, is the loudest, acually sounds like a train, and comes with all the wiring you will need. Includes easy plug and play fuse and relay. And this one I have taken on long road trips way up north in Canada and as I'm driving in icy freezing rain, snow, ice the horn still works.. this is 100% the best horn you can buy on Amazon for how cheap it is no doubt about it! This is a true review and I was not paid to say this.. it really is just an Amazing horn for the money.
The horn is on a 2006 ford escape and is loud asf exactly like a train.

Canada on Jan 04, 2020

Anthony: Price is = quality
It’s not expensive and it’s not the best quality haha but it’s fine
Only the horn is a little cheap but the rest good quality

Canada on Oct 26, 2019