SET YOUR CAR
Buy Now, Pay Later!
FREE SHIPPING
On orders over $200
TALK TO A PARTS EXPERT
RALLYSPORT GUARANTEE
100% Money Back on Select Parts
Product images
Product Media
GrimmSpeed Wiring Harness for Hella Horns (Part Number: )
GrimmSpeed Wiring Harness for Hella Horns (Part Number: )
GrimmSpeed Wiring Harness for Hella Horns (Part Number: )
GrimmSpeed Wiring Harness for Hella Horns (Part Number: )
GrimmSpeed Wiring Harness for Hella Horns (Part Number: )
GrimmSpeed Wiring Harness for Hella Horns
Subaru WRX/STI 2015-2017
Read 2 Reviews | 7 Q&As
Part # 040015
$39.00

In stock! Ships same day

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.

Instead of trying to use mismatched wires you have laying in the garage and twisting them together just to get by, do it right and do it clean the first time with the Grimmspeed Wiring Harness. 

Specifications

Brand: GrimmSpeed
Adjustable: No
Color: Black
Installation Hardware Included: Yes
Mfgr. Warranty: Lifetime
Condition: New Product
Return Policy:

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.
RallySport Guarantee

PEOPLE WHO VIEWED THIS ITEM ALSO VIEWED

REVIEWS & CUSTOMER MEDIA

2 Reviews
5 out of 5 Stars
5 Stars
(2)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
Worth every penny.  10 months ago
GeorgeV
Makes installing the Hellas a breeze One thing I will say is the plug in to the stock harness is just not QUITE right. It doesn’t hold/fit right and you pretty much have to use the supplied shrink wrap to hold the plug together. Otherwise awesome product!
  
Was this review helpful?
Makes things much easier 2 years ago
Velcade
This wiring harness is very nice and makes hooking up the hella horns a breeze.
  
Was this review helpful?

QUESTIONS & ANSWERS

  • Q: Will this work with a 2014forester XT ?  snake6 months ago

    Will this work with a 2014 forester XT ?
    • 0 of 0 people found the following answer helpful

      A:  Fitment for this part is only confirmed for 15+ WRX/STI models. You'd want part number GRM 040005 for your XT.

      Marcus E. @ RallySport Direct 4 months ago  
        
      Was this answer helpful?
  • Q: High and Low horn (OEM) amps  Le_BigTuna2 years ago

    The hella horns draw 3.5 amps each at 12V. Do you know what the subaru OEM horns draw? If we plug&play with the 040015 harness, do we risk drawing too much current through the OEM wires (likely the reason Hella provides the relay)?
    • 0 of 0 people found the following answer helpful

      A:  If the included relay is not installed with the Hella Horns, the horn will not be at this full operating volume.

      Brady R @ RallySport Direct 2 years ago  
        
      Was this answer helpful?
  • Q: Hella horn wiring harness  christiangasparo2 years ago

    Do you have a wiring harness or adapter for a 2015 Subaru Impreza sport premium I bought the 2015 one for wrx and Perrin bracket and horns from you guys. Bracket and horns fit perfect but of course the harness does not fit It looks like they changed the horn plug
    • 0 of 0 people found the following answer helpful

      A:  Grimmspeed does not offer a harness for your car unfortunately. Your best bet would be to use the universal connector included with your horns and repin your OEM harness.

      Josh P. @ RallySport Direct 2 years ago  
        
      Was this answer helpful?
  • Q: Hella harness  beemo2 years ago

    Is there a wiring harness for the 2004 sti
    • 0 of 0 people found the following answer helpful

      A:  No, this is for 2015-2016 models. You will need Part # GRM 040005 for your 2004 STI.

      Brady R @ RallySport Direct 2 years ago  
        
      Was this answer helpful?
  • Q: Will this work with a 2016 STI?  a-irwin2 years ago

    I'm assuming this will work with my 2016 STI since it's compatible with the 2015 and there have not been any significant changes between 15-16. Please verify.