SubiSpeed Hella Sharptone Horn Kit with Bracket and Wiring - 2015-2019 WRX / 2015-2019 STI

Custom Assembled Kit - Usually in stock

As low as: $87.88

Price as configured: $87.88

Hella horns can increase situational awareness for drivers in your vicinity. To simplify installation, we've made a vehicle specific bracket and wiring for these popular horns.

This is a kit we assemble. Usually all components are in stock. Sometimes popular colors can have delays but we do our best to keep every color on hand at all times.
Hella Horn Bracket    (In Stock)   +$0.00

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Price as configured: $87.88



SubiSpeed Hella Horn Kit

Hella horns can increase situational awareness for drivers in your vicinity. To simplify installation, we've made a vehicle specific bracket and wiring for these popular horns.

The center of the Supertone horns are black from the factory and the center of the Sharptones are blue. This will not change even if a custom grille color is chosen.

SubiSpeed Installation Video


It was important for us to make a vehicle specific bracket for the 2015 WRX / WRX STI. We wanted customers to be able to place their horns exactly where they wanted to without interfering with the front grille or radiator. The mounting bracket uses two points to secure itself firmly to the vehicle.

Wiring Harness

With the mounting location and factory plug design in mind, we made a harness to simplify the installation. It includes a 12V relay and inline fuse.

Hella Horn Plug and Play Harness V2

This newer harness is plug and play. For 2015-2017 vehicles, just connect it to the old driver's side horn plug (disconnect from original driver's side horn). Then use the heat shrink to cover this connection. Connect 1 pair of wires to each horn (1 red, 1 black wire). For 2018+ models, you must trace the passenger side horn harness up to where it connects to the main headlight harness AND choose the EXTENDED version. Use this connection for the plug and play harness.

NOTE: You MUST use the heatshrink over the V2 harness connector and the OEM connector.

Hella Super Tone Information

With over 100 years of expertise working with leading German luxury brands, we know what defines performance. Be assured of satisfaction as each HELLA horn is individually tuned to deliver optimal sound performance.

Compare Sounds

Listen to the sounds of the Super Tone and Sharp Tone horns on your smartphone or listen to our Youtube video.

Android Phones - Google Play
iTunes for iPhones - iTunes
iTunes for iPads - iTunes

Hella Super Tones Technical Specifications

  • Sound Level: 118 Db (A)
  • Frequency: 500 Hz High-tone/300 Hz Low-tone
  • Power: 2 x 66W

Hella Sharp Tones Technical Specifications

  • Sound Level: 115 Db (A)
  • Frequency: 415 Hz High-tone/350 Hz Low-tone
  • Power: 2 x 42W

Kit Contents

  • Two Hella Super Tone or Sharp Tone Horns
  • SubiSpeed Mounting Bracket
  • SubiSpeed Wiring Harness
  • Zip Ties
  • Bolts / nuts for mounting the horns

This Part Fits

  • 2015-2020 STI SubiSpeed Hella Sharptone Horn Kit with Bracket and Wiring
  • 2015-2020 WRX SubiSpeed Hella Sharptone Horn Kit with Bracket and Wiring


Additional Information

Installation Instructions See video in description. (subispeed-hella-horn-kit-2015-wrx)
Additional Warranty Information None

4 customer reviews

Average rating
(based on 4 reviews)
Ease of Installation
Fit / Quality
Overall Satisfaction
  1. Clean

    By Mr.WhoozyWhatsIt July 17, 2017

    Makes the car look more aggressive and a nice addition. Horn is stupid loud and will crack anyone's attention. Super easy to install and comes with a couple zipties for a nice hold back on the wiring.

  2. Great product

    By Gregory June 03, 2017

    The wiring harness made the install super easy and with the video it helped out a ton. Hardest part was putting the bumper on myself. I ordered the red thinking the horn part itself was black not blue. Also the connectors on the horns were facing up after they were put on the bracket making the wires very visible. I tried to flip them around but the nuts were way to tight to take off.

  3. Great look and sound

    By Travis January 21, 2017

    I purchased the red superfine for my 2015 WRX. The instal was very simple bolting everything on and wiring the the battery. Subispeed's bracket lets you customize how you want it, and the harness also helps for the easy install. The sound is also very good. Highly recommend.

  4. Love the Horns

    By Jayman July 01, 2015

    I went with the Sharp Tone horns and the full kit with bracket and harness. Love the sound of the new horns and they look sweet behind the grille. The full kit is a must as it makes the install much easier for sure. The only extra I did for the install was to cut the eye ring connector for the ground wire ever so slightly to turn it into more of a fork connector. In the install video mounting point the washer wouldn't come off of the bolt and I wanted to get it in between the washer and bolt head for a better ground contact. I also used some heat shrink (wife works for 3M so I have a ton) to fully cover the connections into the OEM horn connector to better protect it from the elements. All in all very pleased with the upgrade! Definitely recommend!

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