Hella Supertone Horn Kit 12V 300/500HZ (003399801)

Hella Horns
Looking for the lowest price?

Give us a call to get the best prices and parts for your build. Or, just call us with a cool racing story...either way we're here.

Phone Call or Text 651-927-4510

Email - sales@maperformance.com

Fits Your:
Expected Delivery by , when ordered within hrs and mins
 Need Help Getting Started?
Call Or Text Our Experts at 651-927-4510

$37.15 $38.18Instant Savings of 3% ($1.03)

Earn  $0.74 In MAP Rewards!

Hella Supertone Horn Kit 12V 300/500HZ

Every other part of your performance vehicle wants to be heard, but the horn is the only part that NEEDS to be heard.

The Hella Supertone Horn kit is a powerful upgrade for the safety of your 2002-2017 Subaru WRX or STI models. This dual kit provides an important 118 decibels of warning power, to ensure you are heard when you need to be. The horn emits tones at two frequencies — a high 500 Hz and low 300 Hz. The mounting bracket fits right behind the grill of your Subaru. Each horn is mounted in a rugged red case for attractive visibility.

This is one of the few products we sell that offers zero horsepower gains, and we’re OK with that. The Hella Supertone Horn will change your car’s meek meep-meep sound into a powerful blast that will be heard at the most critical moments.


  • Power Consumption: 2 x 66W
  • Frequency: 500Hz (high tone) & 300Hz (low tone)
  • Acoustic Pressure Level: 118 dB(A)
  • Nominal Voltage: 12V
  • Part Number: 3AG 003 399-801 (with relay)


  • Universal

What's in the box?

  • 1 Supertone Horn Kit


  • MFGR. Limited Warranty

Customer Reviews

Based on 17 reviews
Christian Jackson
Best Bang For the Buck Evo Upgrade

I tucked mine into the lower left area of the bumper so they are hidden. Sounds great and out of sight.

Reviewer avatar
Excellent Horns

I wanted to replace my stock EVO horns with something more appealing to the eyes, I like that you can paint them and the install on the EVO is pretty straightforward, the stock horn harness will clip right onto the horn just have to re route them a bit an run the ground wires and make a good mounting system and they work great. They look much better and are way louder than stock. Very happy with them.


Had these on my old WRX, they are great and super loud. Going to get them again for my new WRX!

Shelby Coral
Hella LOUD!

Worked great for my 97 Honda Prelude, the original horns gave out on it before I got it so I decided to get some aftermarket ones. Gotta say these probably scared the daylights out of every neighbor in my neighborhood when testing them! They are LOUD! Not to mention they are also double the size of OEM Honda horns.

Excellent upgrade from OEM !

I enjoy the tone and the different ways to feature them is great!