• 150 DB Trunk For Cars And Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks
  • 150dB Dual Trumpet Air Horn for Cars and Trucks

150dB Dual Trumpet Air Horn for Cars and Trucks

$100.99 USD
$100.99 USD
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Free shipping on every US order

90-day returns and money-back guarantee

Ships from Raleigh, NC in 1-3 business days

Email support at support@plainlys.com, replies within 12 hours on business days

150dB blast cuts through traffic noise
Dual chrome trumpets for deep tone
Fits most 12V cars, trucks, SUVs

Factory horns on small cars are apologetic, which is a problem when the driver ahead has the windows up and headphones on. This dual trumpet kit puts out 150 decibels with a deep, layered tone rather than a thin electric beep, so it registers as a warning at distance instead of blending into general road noise.

The kit pairs a compressor with a pair of trumpets and runs on a standard 12V vehicle supply. A relay is included so the horn draws current straight from the battery rather than through the original horn switch wiring, which is what keeps the note full under load. Housings are metal with weather resistant finishes chosen for under bonnet heat, engine bay damp and winter road salt. Mounting brackets are supplied, and the compressor can be sited away from the trumpets where space is tight.

It fits cars, vans, pickups, trucks, 4x4s, boats and tractors running 12V systems. Horn loudness and tone are regulated for road use in many countries, and some multi tone or musical horns are not street legal, so check local rules before fitting. Wire through the supplied relay and an inline fuse, keep the trumpet mouths facing down or forward so they drain, and disconnect the battery before working on vehicle wiring.

  • Output: 150dB, dual trumpet
  • Supply: 12V vehicle electrical systems
  • Includes compressor, relay and mounting brackets
  • Metal housings with weather resistant finish
  • Compressor mountable separately from the trumpets
  • Fits cars, vans, pickups, trucks, 4x4s, boats and tractors
Shipping Information

Free Domestic Shipping (United States)

Orders are processed and prepared for shipment within 1-3 business days, and up to 7 business days during holidays and peak periods. Once your order has been dispatched you will receive tracking information by email. Delivery within the United States typically takes 5-10 business days after dispatch. These are estimates and not guaranteed delivery dates.

90-Day Returns

If you are not satisfied with your purchase, email support@plainlys.com within 90 days of delivery and we will arrange a return. Items should be unused and in their original packaging. Return shipping is the customer's responsibility unless the item arrived damaged, defective or incorrect, in which case we cover it. Refunds are issued to the original payment method once the return is received.

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150dB Dual Trumpet Air Horn for Cars and Trucks, Heard From Every Lane

Heard From Every Lane

A full 150 decibels of dual trumpet sound carries over engines, wind and closed windows. When a driver drifts into your lane, one press is all it takes to get their attention.

150dB Dual Trumpet Air Horn for Cars and Trucks, Built For Rough Roads

Built For Rough Roads

The trumpets are weather sealed metal and the compressor is built to shrug off heat, grit and rain. It keeps its voice through winter salt and summer highway dust.

150dB Dual Trumpet Air Horn for Cars and Trucks, Bolts On In Minutes

Bolts On In Minutes

Mount the bracket, run two wires to your 12V supply and you are done. Plainlys ships it with the hardware and hose already matched so there is nothing extra to source.

Frequently Asked Questions

How loud is this air horn really?
It peaks at 150 decibels, which is far louder than a factory car horn and closer to a small truck horn. That is enough to be heard clearly across several lanes of moving traffic.
Will it fit my vehicle?
It works with any standard 12V electrical system, so cars, pickups, SUVs, vans and most boats are all covered. The compact trumpets tuck behind the grille or under the hood in nearly every engine bay.
How hard is the installation?
Most people finish in under thirty minutes with basic hand tools. You bolt the bracket to a solid point, connect the hose to the trumpets and wire the compressor to power and ground.
What is it made from?
The twin trumpets are chrome finished metal and the compressor housing is sealed against water and dust. Everything under the hood is chosen to handle vibration and temperature swings.
Does it need any upkeep?
Almost none. Wipe the trumpets clean when you wash the vehicle and check the mounting bolts once a season to keep the tone crisp.