GrimmSpeed Hella Horn Wiring Harness - 2002-14 Subaru WRX, 2004-14 Subaru STI

GrimmSpeed Hella Horn Wiring Harness - 2002-14 Subaru WRX, 2004-14 Subaru STI

$30.60 $36.00 Save $5.40

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GrimmSpeed SKU: GRM040005

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Simple, Clean, Reliable Connection.

  • 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.

FITMENT:

  • 2002-12 Subaru Impreza
  • 2002-14 Subaru WRX
  • 2004-14 Subaru STI
  • 2003-08 Subaru Forester
  • 2002-15 Subaru Legacy
  • 2002-15 Subaru Outback

INSTALLATION:

Overall rating: 4.965517 / 5 from 29 reviews.

AI Generated Review Summary

This GrimmSpeed Hella Horn Wiring Harness offers a simple, clean, and reliable connection for specified Subaru models. It features automotive-grade 16ga wire, heat shrink terminals, and protective sleeving. Customers appreciate its easy installation and excellent quality.

Summary topics

  • Installation Ease: 22%
  • Product Quality: 18%

Review topics: ["quality","install","harness","plug","kit","grimmspeed"].

Review highlights

  • "Excellent quality plugs into connectors very easy" — Kroo
  • "The install was so much easier and cleaner and you cant tell that there is even a harness there." — Nic G.
  • "Easy to install and high quality." — Brandon L.

Reviews

Works for 2014-2018 Forester

"I originally bought this for my 2015 Forester. The SJ Forester (2014-2018) uses the old style single pin harness like the 02-14 wrx/sti. I can confirm that it works & is somewhat "plug & play". The only thing that you would have to modify is on the "positive lead pin" on the harness. You have to peel back the plastic pin cover that connects to the oem horn connector on the GrimmSpeed harness which is extremely easy to do. Do not order the newer 2015-2020 harness as it has dual pin connector harness which won't work for the SJ Foresters. Im happy and it works great. Don't forget to grab the Grimmspeed HellaHorns BroTie. That also works for the SJ Forester."

— John H. (5/5)

Hella Horn wire harness

"Perfect plug and play. Quality materials and easy to install. Highly recommended for adding Hella Horn to your Subaru. Takes the hassle out of wiring and not using a relay."

— A. L. (5/5)

Awesome!

"Took five minutes and got rid of the relay that was always going bad! Can’t recommend enough."

— Aaron (5/5)

Get this one

"This kit was out of stock and I was impatient and got a universal kit. I went through the trouble of installing the universal kit with wiring through the car and booking up to the battery. It was more complicated than it needed to be and failed after a heavy rainstorm got it wet. Finally got this wiring kit. Soooo easy. Don’t look elsewhere, get this kit. It’s the one you want."

— William M. (5/5)

Easy as 1,2,5

"Super easy to use/install. Pretty much plug and play. Highly recommend!"

— Jordan R. (5/5)

Exactly what you need

"This is the perfect pre-made wiring solution. Easy to install and high quality. So glad I found this product as I was struggling with products I found elsewhere. This is the one that worked and it was just what I needed."

— Brandon L. (5/5)

Basic

"The most basic products always surprise me. The way the cords are braided and how simple the connections are. This is by far one of the favorite purchases I've made with GrimmSpeed. I love it. GrimmSpeed knows how to make and sell their products."

— Joao V. (5/5)

Hella Harness 02-14 WRX

"Super easy plug and play wiring harness that makes life so much quicker to install your Hella Horns on your Impreza. Have the same harness on my '07 Impreza and '18 Impreza. The install was so much easier and cleaner and you cant tell that there is even a harness there."

— Nic G. (5/5)

Hella harness

"So easy, even I could do it"

— Dean W. (5/5)

Must have

"This install couldn't be any easier."

— Randy F. (5/5)

Q&A