7 Best Car Horns of 2020

Jerry Wilson
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There aren’t many more harrowingly terrifying sounds than blaring car horns in the crowded streets of a big city. These ole’ timey devices are capable of producing sounds that can shatter windows!

But, that’s not the only reason to choose a great car horn. Sometimes, we want our horns to work as signaling devices to let others know where we’re going or to … well, … honk at them when they cut us off!

Here are 7 of the best car horns to buy in 2020.

NameCategoryProduct
HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn KitBest Overall
HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn Kit
Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150dbBudget Pick
Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150db
MPC B1Upgrade Pick
MPC B1

1. HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn Kit

Our rating: 9 / 10


HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn Kit

Check Price on Amazon

Pros:

  • Solid Construction
  • Can Be Mounted Individually or Together
  • Loud
  • Versatile

Cons:

  • Costly
  • No Backup Battery

HELLA’s Supertone horns will definitely get the job done every time. Two horns are better than one. That’s why these horns come as a twin-pack. They’re loud enough to scare even the most dangerous drivers into giving your car room.

What’s great about these horns is that they can be mounted individually or together. The horns in this review are the top of the line, but if you’re not in a horrible rush, you can save a few dollars by getting the cheaper version on Amazon.

I installed the horns on the roof of my car and connected the wire to my car’s battery. The installation was pretty easy, and all parts and tools came along with the kit.

2. SUPER LOUD MARCO TORNADO Compact Air Horn

Our rating: 8 / 10


SUPER LOUD MARCO TORNADO Compact Air Horn

Check Price on Amazon

Pros:

  • Easy to install
  • All-season horns
  • Loud enough to alert even the deaf
  • Car horn beeps?
  • Variety of sounds

Cons:

  • No off button
  • Sound is not music to ears of those around you
  • Loud for those on the road
  • Can be heard up to a mile away

This is one of the loudest air horns you can get, and that’s probably why it’s the top rated item on the market right now.

The Marco ThinTone Compact Air Horns, while portable and versatile, are loud enough to wake the dead. The product video clip alone is almost more than some people can handle. If your pickup truck can’t be heard, then you need the Marco “Snake” Compact Air Horn. No, seriously, you do. Not only will you be heard by other drivers, but you’ll be heard by the cops too. It’s loud enough to get your attention and let you know that you’re driving too fast.

3. Stebel Nautilus Compact Motorcycle Air Horn

Our rating: 8 / 10


Stebel Nautilus Compact Motorcycle Air Horn

Check Price on Amazon

Pros:

  • Good battery life
  • Loud

Cons:

  • Loud is an understatement

I recently tested the Stebel Nautilus Compact Motorcycle Air Horn on my Ducati Streetfighter. The first thing I noticed was that the horn looks really stylish. It adds some carbon fiber accents without looking garish.

The horn has a good battery life – and the specifications say more than 24 hours in continuous use. I used it for a week straight, and the battery still lasted through it all.

Although it’s marketed as a motorcycle horn, the device is really useful for your car as well. I dropped it in my wife’s SUV, and it worked just great – whether you use it to warn vehicles in front you or to alert pedestrians.

4. MPC B1

Our rating: 8 / 10


MPC B1

Check Price on Amazon

Pros:

  • Loud, attention getting sound
  • Simple to install
  • Affordable
  • Comes with universal mounting kit
  • Securely fastens to the front of the grill

Cons:

  • You have to purchase relay separately
  • Easy to break tabs when installing

The MPC Airhorn is a loud and attention getting horn which has been tested for optimum sound levels from 100 to 400 feet away. The horn kit is very simple to install and comes with a universal mounting kit.

It’s universally compatible for every vehicle and comes with three mount brackets to fit a variety of vehicles, trucks, cars, trucks and SUVs.The components are powder coated to be weather resistant.

Lastly, it’s an affordable car horn with an easy installation. This product comes with dual relay, popping noise amplifier and time delay relay, which together makes for a loud, attention getting sound.

5. Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150db

Our rating: 7 / 10


Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150db

Check Price on Amazon

Pros:

  • Very loud (150 db), impressive horn for a low price
  • A solid, heavy and really sturdy construction
  • 12 volts battery
  • Long lasting battery
  • Works in a temperature range of -30C to +50C

Cons:

  • The horn comes with low-quality rubber gaskets
  • The compressor is of low quality
  • The horn is very loud, but also very loud and fake

Yesterday when I went to the gas station to fill my car with gas, the owner gave me this horn as a present. Wow! I was really surprised, he's the nicest gas station owner in the world! I didn't expect that this horn would be so loud (130db), it almost took off the car roof. I couldn't believe the size of the main body. A really well built air horn!

After a day of testing, checking the horn in all conditions, I decided to leave the following review:

The 120 PSI pressure is just enough to blow the 8 Trumpet Air Horn and produce a really harsh sound, and the single 12V battery is more than enough to do that. You will be amazed when you hear this horn on the highway. Screams and shatters the other noises and of course, scares the other drivers.

6. Wolo

Our rating: 7 / 10


Wolo

Check Price on Amazon

Pros:

  • Adjustable volume control
  • Adjustable mounting bracket
  • Built to last
  • Compatible with multiple cars
  • Compact and lightweight

Dual Tone Model.

The Wolo Bad Boy is our top pick as it is loud, durable, and super simple to install. It’s super convenient and has an awesome design. It can be mounted on a variety of locations on a car and on the go. This is a handy horn that you can change the volume level from very quiet to super loud. You can mount it on your car and adjust the volume according to your comfort level.

It features a compact design and is made of solid metal. This is a horn that will last you for a very long time. It comes with a high-quality 12 volt dual tone air horn. It has a 120dB sound output. To install this, you will require a 3/8” tee joint, 8” of wire, 12 inches of 8-gauge electrical wire, 2 ring terminals, 2/0 gauge wire. This is the best horn I have seen on the market. Buy with confidence.

7. PIAA 85115 Superior Bass Horn

Our rating: 6 / 10


PIAA 85115 Superior Bass Horn

Check Price on Amazon

Pros:

  • Rugged design
  • Cleaner, louder sound over the Classic

The PIAA 85115 delivers a larger frequency range than its Classic cousin, producing a sound that’s deeper and louder plus it harmonizes better and safer with factory sound systems. The beefier body and base go a long way in increasing both power and durability.

PIAA has always been the standard in car audio, but with the addition of the 85115 Superior Bass, you now have a safe and responsible way to deliver the proper message to the other vehicles on the road. With improved harmonics and cleaner, deeper bass sound, you will gain a significant advantage in communicating your intentions. The PIAA 85115 is rated at a whopping 135 dB – 10dB higher in volume than the Classic. And it’s designed to harmonize better with factory sound systems.

And with its rugged design, you can be sure you’re going to get more bang for your buck with the PIAA 85115. Available in chrome, the 85115 is virtually indestructible.

Frequently Asked Questions (FAQ)

Which car horn is best?

Really, that's an impossible question to answer. Fact is, how you'll use the car horn will largely depend on exactly what you need it for and what you're trying to "say" with the horn. But for example, if you're only looking for a horn for your personal, daily vehicle, I wouldn't recommend any of our top picks. It's just not a place you need, or should want, to spend that kind of money.

That said, if you have a secondary car that you use just to run errands, or only take on the odd road trip, and you don't care about keeping it looking factory-fresh, then you could get away with a lot less expensive option.

What is the loudest horn in the world?

It depends on your definition of loudest. The Loudest horn for your car is the one that can improve your safety on the road by reducing accidents and avoiding conflicts.

In our experience, the absolute loudest horn in the world can be loud enough to be heard through a helmet, but on the street you are going to struggle to hear it without doing some modifications.

Can I put a louder horn on my car?

Although there is no set law about how loud your horn can be, it's worth noting that an excessively loud horn can lead to the kind of trouble you might have been trying to avoid in the first place. Keep it in check.

Fitting a larger, louder horn can be problematic. On older cars, it will often lead to too much pressure building up as the horn honks too quickly in succession.

You might feel tempted to make a DIY horn for your car, but it’s generally a bad idea. Horns can be pretty dangerous and if you don’t know what you're doing, you risk hurting yourself – or someone else.

How much does it cost to replace a car horn?

Conclusion

There is a lot of research involved when we look at car horns. We consider all sorts of factors like sound level, installation, longevity, durability, and affordability. The list we have compiled has a little of everything, so we are confident that it has the potential both to please the experienced car buyer, as well as the beginner who is looking to replace their broken bulbs or current horns.

Our Recommendation

NameCategoryProduct
HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn KitBest Overall
HELLA 003399801 Supertone 12V High Tone / Low Tone Twin Horn Kit
Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150dbBudget Pick
Zento Deals 12V Single Trumpet Air Horn Single Trumpet Air Horn + Compressor Powerful Loud 150db
MPC B1Upgrade Pick
MPC B1