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Top 6 Best Loud Car Horns In 2021 Review & Buying Guide

We’ve all used our car horn in both good and bad driving behavior scenarios. While road rage may occasionally get the better of us all, it’s not the intended use of a car horn.

Good drivers use their horns when required to warn those around them. Bad drivers, on the other hand, use it to aggravate and annoy those around them. Either way, the horn will only get people’s attention if it’s loud.

That’s why you need one of the best loud car horns.

You might not know it if you live in NYC, but the horn is actually a safety feature. But it will only help to keep you safe if it is heard above the other city traffic.

But how can you find the best loud horns for your car? Don’t worry, we’ve got you covered. We’ve reviewed the loudest car horns that are currently on the market. So, let’s go through them and find the perfect one for you…

Top 6 Best Loud Car Horns To Purchase In 2021 Reviews

  1. HELLA 003399803 Supertone 12V High Tone / Low Tone Twin Horn Kit – Best Loud Hella Horns for Cars
  2. HELLA 007424801 Twin Trumpet High/Low Tone 12V Horn Kit with Bracket – Best Value for the Money Loud Car Horns
  3. FIAMM 72112 Freeway Blaster LOW Note Horn – Best Budget Loud Car Horns
  4. PIAA 85115 Superior Bass Horn – Best Deep Tone Car Horns
  5. Wolo (419) Bad Boy Air Horn – 12 Volt – Best Mid Range Loud Car Horns
  6. Marco Super Loud Tornado Compact Air Horn – Best Premium Loud Car Horns

1 HELLA 003399803 Supertone 12V High Tone / Low Tone Twin Horn Kit – Best Loud Hella Horns for Cars

So, you want a new car horn that really gets people’s attention. Not just a louder-than-normal horn, but one that really makes people turn their heads immediately.

Introducing the Hella Dual Supertone Horns. These babies are sure to grab everyone’s attention and will make your ride standout. No matter the situation, these high and low tone horns are just what your vehicle needs.

What makes them so good?

These car horns, and yes, there are two horns, have become famous for a reason. Not only are they loud and powerful, but they also don’t sound like every other horn out there. Plus, they even look rather good.

We like the black coated metal body, which then features a red protective grille. This provides the horns with a stylish look, which is always important to performance-oriented drivers.

What’s even better?

Hella also makes these available in other colors. If you’re not a fan of the red grill, there are also black and yellow options. They also make a single, rather than this dual horn option. We think this is great, as everyone loves options.

Just how loud are they?

With these horns, the high tone rings in at 500 Hz, while the low tone comes in at 300 Hz. This is with a 118 dB(A) round level, and the setup runs on a 12Volt power supply. So yeah, it’s pretty damn loud.

We also appreciate that these horns come with a universal installation kit. These should work with any vehicle, but confirm if you have an older or unusual vehicle.

HELLA 003399803 Supertone 12V High Tone / Low Tone Twin Horn Kit

Our rating:4.5 out of 5 stars (4.5 / 5)


  • High and low tone horns.
  • Extremely loud.
  • Easy to install.
  • Fits most makes and models.


  • Not a pleasant sound, but then that’s the point.

2 HELLA 007424801 Twin Trumpet High/Low Tone 12V Horn Kit with Bracket – Best Value for the Money Loud Car Horns

Another option from Hella is their Twin Trumpet Horn Kit. This is very similar to the above listing, except for the most important factor. The sounds the horn produces.

Do you like trumpet horns?

We certainly do; they seem to grab people’s attention rather quickly. This is a twin trumpet horn kit, and it supplies you with both a high and low tone trumpet.

The two horns blend well and produce a pretty loud sound. It comes in at 110 dB, so not quite as loud as a full-size trumpet horn. Still, this simple kit is easy to install and small enough to mount almost anywhere.

Which color do you prefer?

We rather like the red, but these horns are also available in a range of other colors. They can easily be mounted to the exterior of the grill and look good enough to show off. They are also small enough to mount inside the engine bay should you prefer.

We think this is one of the best loud boat horns and a great car horn. However, it’s not loud enough to be heard over a large truck engine. The high tone speaks out 500 Hz, while the low tone is limited to 400 Hz. Again, all mounting instructions and a mounting bracket are included with the kit.

HELLA 007424801 Twin Trumpet High/Low Tone 12V Horn Kit with Bracket

Our rating:4.4 out of 5 stars (4.4 / 5)


  • High and low tone horns.
  • Trumpet horn sound
  • Easy to install.
  • Fits most makes and models.


  • Not the loudest trumpet horn.

3 FIAMM 72112 Freeway Blaster LOW Note Horn – Best Budget Loud Car Horns

We are also throwing one of the best loud motorcycle horns on our list. This is made by Fiamm and known as the Freeway Blaster LOW Note Horn. We think it’s a great option for ATVs and UTVs as well.

You might not be seen, but you can be heard…

We all know motorcycles are often missed when people look in their mirrors. With the right loud horn, you can ensure they know you’re there.

Similarly, it’s wise to have a loud horn for your off terrain vehicles. Pop off that horn when cresting a hill or approaching a tight corner. That way, people know you’re flying down that dirt track.

Is it easy to install?

Oh yeah, this setup is super simple to install. It will fit any vehicle, but we’d recommend it for smaller motor vehicles like those mentioned already. It produces 133 dB in a low note that is sure to catch people’s attention.

It’s corrosion resistant and features a steel housing and aluminum coil motor. Even though it’s not the loudest option on our list, it is one of the most compact. In the end, we think it’s a great upgrade for the stock motorcycle horn.

FIAMM 72112 Freeway Blaster LOW Note Horn

Our rating:4.4 out of 5 stars (4.4 / 5)


  • Low tone horn.
  • Great for motorcycles, ATVs, UTVs, etc.
  • Easy to install.
  • Compact design.


  • Not loud enough for larger vehicles.

4 PIAA 85115 Superior Bass Horn – Best Deep Tone Car Horns

Another well-known manufacturer of car horns is PIAA. They make a model they call the Superior Bass Horn. It’s a great sounding loud horn that is sure to grab everyone’s attention.

Do you want to draw attention to your ride?

This loud, deep tone horn will certainly spin some necks. People might be expecting a cargo ship thanks to the twin 330 Hz and 400 Hz horns. These produce 112 dB, which is extremely loud for a deeper tone.

We can see a lot of those big lifted trucks and SUVs wanting one of these. Plus, there is no need for relays or rewiring. This horn is easy to install and built to last.

How do we know?

It’s backed by a limited lifetime warranty. We always love this line, as it means quality you can rely on. And since the horn may be used in life or death scenarios, you want a horn you can count on.

PIAA 85115 Superior Bass Horn

Our rating:4.4 out of 5 stars (4.4 / 5)


  • Deep loud tone.
  • Great for trucks and SUVs.
  • Backed by a Limited Lifetime Warranty.
  • Easy to install.


  • Not the loudest option on our list.

5 Wolo (419) Bad Boy Air Horn – 12 Volt – Best Mid Range Loud Car Horns

Sometimes you don’t want to get fancy; you just want a louder horn. That’s where Wolo comes in. They make the Bad Boy Air Horn, and it’s got a couple of things going for it.

First, this bad boy is loud…

In fact, it’s twice as loud as the factory horn on your vehicle. That means people will jump twice as high when you startle them with your horn. But in all seriousness, that does mean other drivers and pedestrians are more likely to hear you.

Plus, this air horn sound is much more like what you’d expect for the most part. No fancy trumpet or deep bass horns here.

The other top selling point is the installation…

This unit was made to replace factory horns in a matter of minutes. In fact, there’s only one bolt included in the kit. This is thanks to the patented one-piece design.

There are no hoses required. In fact, you just swap over the factory horn wires to the compressor, and you’re done. It’s that easy to make your car horn two times louder.

Wolo (419) Bad Boy Air Horn - 12 Volt

Our rating:4.2 out of 5 stars (4.2 / 5)


  • Twice as loud as factory horns.
  • Super easy to install.
  • Patented one-piece design.
  • Maintenance-free compressor.


  • Not the loudest option on our list.

6 Marco Super Loud Tornado Compact Air Horn – Best Premium Loud Car Horns

The final option in our search through the best loud car horns is made by Marco. This Super Loud Tornado is a compact air horn that fits behind most grills. It’s a great option for many drivers and likely your best bet.

If you want to get noticed, you have to be loud…

This horn is compact enough that you’ll be shocked when you hear it. It produces 150 dB of loudness, which is certain to make you heard. We think it’s the best loud truck horn for the price.

This is mainly down to both the loudness and the almost high pitch of the horn. It doesn’t sound like other horns on the road, nor is it terribly annoying.

What about the quality?

Marco ensures that these horns are 100% tested before they are allowed to leave the factory. That means you can entrust you’ll receive a good working unit.

They are also backed by a 1-Year Limited Warranty.

Marco Super Loud Tornado Compact Air Horn

Our rating:4.3 out of 5 stars (4.3 / 5)


  • Factory tested for quality.
  • Backed by a 1-Year Limited Warranty.
  • Super loud air horn.
  • Compact design.


  • Not everyone will like the tone of the horn.

Best Loud Car Horns Buying Guide

Best Loud Car Horns Review

We know that our reviews list can seem complicated, but it’s really not once you break it all down. So, let’s do that next…

The first thing you’ll want to decide on when shopping for a car horn replacement is the tone produced. We aren’t talking about a Daisy Dukes style honk-tune. No, we are talking about the pitch or the sound of the horn. So, we’ve broken this up in the next section, just to clarify things.

Trumpet Horns

The loudest horns you can generally find are trumpet horns. These horns sound something like the high train horn. However, there is a downside to these ultra-loud horns. Trumpet horns are also generally the largest horns. In fact, some trumpet horns measure a few feet long. This makes installation a bit more tricky, as considerably more space is required.

This isn’t a big problem with larger trucks, but it can be an issue with smaller cars. For this reason, trumpet horns are usually preferred by truckers and boaters. Some smaller vehicles may require such a horn, but there are better options if you need a compact car horn.

High Tone Horns

The main benefit of high tones is that they travel better over distance. There isn’t really much need for this when driving in town. After all, horns are generally used for communicating with those in your immediate area.

However, if you are traveling at speeds, this can be beneficial. Thus, for highway driving, high tone horns are ideal for alerting drivers ahead of your presence. On long highways with cross-traffic, this can be crucial.

Low Tone Horns

As you might have already guessed, low tone horns are better suited to the congested city traffic. Here you don’t need the sound to travel as far, at least not if you’re stuck in Friday night traffic.

Many drivers prefer the low rumble to a higher pitch for their horns. In the end, though, it’s largely down to personal preferences.

Twin Tone Horns

This is the best option for those that want it all. Twin tone horns blend a high and low tone together for a single sound. This means you’ll be heard locally and down the road.

These types of horns do tend to cost a bit more, which makes sense. They also tend to be larger, though that is not always the case. There are, of course, other things to consider when purchasing a new loud horn for your vehicle. So, in addition to the sound it produces, you should also consider the below points.


Top Best Loud Car Horns

Most of the options on our list will mount easily enough. In fact, for the most part, the installation of a loud horn is a simple matter of swapping out the factory one.

However, some options will require some additional electrical wiring to hook up. We suggest that you keep things within your DIY level.

Mounting Requirements

Before you can mount a new loud horn for your car, you should first ensure you have space for one. Some options reviewed above require far more space than your standard factory horn.

We advise that you first check you have the space required to mount a new horn. Trumpet horns can take up a lot of space, and this should be considered before ordering.


Obviously, cost will play a factor in any purchase. The options above vary a fair bit in price, but there are other factors to consider here. Durability and reliability generally increase with the cost.

So, while one option may be less than half the price of another, it may not really save you money in the long run.


How loud a horn screams is measured in decibels, which is shortened to dB. The options above range up to 150 dB, which is plenty loud to get anyone’s attention.

You should consider whether your local regulation allows for so loud of a horn. Some cities and even states have dB restrictions. In fact, some are as low as 110 dB, so confirm your local noise ordinances prior to ordering.

Looking for other ways to customize your ride?

If so, check out our reviews of the Best Nerf Bars, the Best Wide Angle Mirrors, the Best Double Din Head Units, the Best Dash Cover, and the Best Car Speakers you can buy.

Or how about our reviews of the Best Dog Car Seat Covers, the Best Bluetooth Car Kits, the Best Car Air Fresheners, the Best Remote Start System, and the Best Car Alarm Systems currently on the market in 2021.

So, what are the Best Loud Car Horns?

With so many options vying for your attention, it can seem overly complicated when shopping for the best loud horn for your car. Hopefully, our list of loud car horn reviews helped you narrow down the options.

If nothing jumped out at you, we’d be surprised. However, if you really can’t make up your mind, we’d recommend the…

Marco Super Loud Tornado Compact Air Horn

It is incredibly loud, and that’s what these are all about. Plus, it’s compact enough to mount on motorcycles and loud enough to be heard over truck engines.

Happy driving!


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