
Features & Product Details
This is the Grimmspeed wiring harness for those of you planning on installing Hella Horns on your vehicle. This wiring harness provides a clean and secure means of installation especially if you wanted to install the Hella Horns in a custom location or if you have purchased one of the horn mounting brackets.
And nobody likes looking at a rat’s nest of wires in the engine bay. If you’re installing the Hella Horns, keep things neat, and tidy with the Grimmspeed wiring harness.
Specifications
RallySport Guarantee - 30 Days
Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.
RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.
The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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REVIEWS & CUSTOMER MEDIA

it is a great product from grimmspeed but i would still highly recommend wiring up your relay with horns just this plug and play half of wiring will not be enough to keep horns going in longevity. as i am coming from experience and reading forums eventually your horns and or fuses will burn/ short circuit because the supertone horns require more power than the stock horns do.
Another amazing product from Grimmspeed! Easy to install, great quality, and hides very well.
Bought this cause I am awful with wiring. Works perfect and looks way better than any stuff I could put together. Grimmspeed and RSD are awesome!
Takes the hassle away from crimpin or soldering!
This wiring harness is awesome. Very high quality material that will with stand all the elements. This harness also makes the install process that much easier. I would highly recommend and 100% worth the extra cash. Check out my install video on my YouTube Channel: 06WRXDUDE.
QUESTIONS & ANSWERS
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Q: Install darthduck308 2 years ago
I may just be having a brain lapse... but do I need to modify my stock wiring to install this, I see no wire to plug the power wire into... I have a short wire coming from my wiring harness to each of my horns.
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0 of 1 people found the following answer helpful
A: You will not need to modify your wiring harness. These allow power to be pulled from your stock horn connector.
Tyler A. @ RallySport Direct 2 years ago
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0 of 1 people found the following answer helpful
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Q: 06 wrx tr SmurfinHawkeye2 years ago
Will this work for a 06 wrx tr?
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0 of 1 people found the following answer helpful
A: At the bottom of the product page, you will find our fitment guide. This specific harness will work for a 06 WRX TR
Luis L. @ RallySport Direct 2 years ago
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0 of 1 people found the following answer helpful
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Q: Relays angeloferradas258422 years ago
Will this wiring allow for use of the relays that come with the horns?
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0 of 1 people found the following answer helpful
A: The harness does not utilize the relay that comes with the horns, you would need to modify the piece on your own in order to run the relay.
Tyler A. @ RallySport Direct 2 years ago
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0 of 1 people found the following answer helpful
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Q: 14 Crosstrek fitment f12093 years ago
It's not a listed vehicle but does someone know of this week work on a MY14 XV Crosstrek Thanks
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0 of 1 people found the following answer helpful
A: We cannot confirm that this will fit for your 14 XV Crosstrek
Jared A. @ RallySport Direct 3 years ago
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0 of 1 people found the following answer helpful
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Q: hella horns galus243 years ago
Will this wiring setup make it so that I don't need any other wiring when installing hella horns on 2007 wrx?
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1 of 1 people found the following answer helpful
A: Yes, this will make the Hella Horns plug and play.
Josh P. @ RallySport Direct 3 years ago
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1 of 1 people found the following answer helpful