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  • Automotive Grade 16ga Wire - Minimal resistance for maximum volume
  • Heat Shrink Terminals - Heat shrink, crimp-on terminals ensure a reliable connection
  • Protective Wire Sleeving - Clean black look, protects against abrasion and stress
  • Plug-n-Play with OEM Harness - Installs and uninstalls in seconds

When it comes to wiring the Hella Horns that are mounted to your beautiful GrimmSpeed BroTie Bracket, we have you covered. Don’t stress yourself with trying to make a Hella horn harness from scratch when we offer a simple pre-assembled, OEM-quality harness that will allow you to plug and play in seconds. 

You’ll notice our harness does not incorporate the Hella-provided relay as standard. After some testing, we determined that the additional few dBs offered by wiring with a relay weren't worth the added headache and potential failure points of a more complex harness using the relay, inline fuse and additional wiring directly to your battery. Should your heart desire those last few ounces of dBs, our harness can be adapted for use with a more complex relay harness.


  • 2002-2014 Subaru Impreza, WRX and STI
  • 2002-2015 Subaru Legacy
  • 2002-2015 Subaru Outback


16 Reviews

Ben 2nd Dec 2019

This Harness Made the Install a Breeze

I was glad that I listened to other reviews saying the harness was a must-have addition to the horns and bracket. Having a plug-n-play harness allowed me to install the new horn set in about 10 minutes once the bumper was off. I highly recommend this if you are buying the hella horns.

Zain Master 23rd Jul 2018

Hella Wiring Harness

This was the simplest mod, wiring harness that I've put on a Subie! Loved the simplicity and packaging.

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