Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Your cart
-
0-9
-
A
-
B
-
R
-
S
GrimmSpeed
GrimmSpeed Hella Horn Wiring Harness for 2015-2023 Subaru WRX / STI - GRM040026
$41.00
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits 2015-2023 Subaru WRX and STI models.
Upgrading to Hella Supertone or Sharptone horns shouldn't require hacking into your vehicle's factory electrical system. The GrimmSpeed Hella Horn Wiring Harness provides a professional, plug-and-play solution that eliminates the need for wire splicing, soldering, or crimping. Designed specifically for the 2015+ Subaru chassis, this harness ensures your aftermarket horns receive consistent power while maintaining a clean, OE-style engine bay appearance.
Each harness is constructed with high-grade automotive wire protected by a durable loom to withstand heat and moisture. The connectors are precision-molded to interface directly with the factory horn plug and Hella terminals, significantly reducing installation time and potential failure points.
- Complete plug-and-play installation with no wire cutting or splicing required
- Protective heat-shrink and loom for long-term weather resistance
- Optimized length for clean routing on 2015+ Subaru WRX/STI platforms
- Engineered for use with Hella Supertone and Sharptone horn kits
- Manufacturer Part Number: GRM040026
Choose your Location
-
Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
Product Comparison
How they are Different
|
__ __ |
|
|---|---|
| Description |
Description - __ |
| Rating |
Rating - __ |
| Vendor |
Vendor - __ |
| Color |
Color - __ |
|
|
Compare products ( / )
The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
GrimmSpeed Hella Horn Wiring Harness for 2015-2023 Subaru WRX / STI - GRM040026
$41.00
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
Our prices are updated daily to ensure we can offer you the best possible price. In the unlikely case that you have found a lower price, please contact us at hello@atlusauto.com and we'll do our best to answer your query right away!
Easy Financing
We've partnered up with Affirm/Shop!
Why use Affirm/Shop?
- Clear application process
- Friendly support team
- Spread a big payment interest-free
- Ability to buy what you want
How does it work?
- Add your purchase to cart
- Select Shop Payments at checkout
- Complete the application
- Compare any available finance options
Share:
$41.00
$41.00
$41.00
Fits 2015-2023 Subaru WRX and STI models.
Upgrading to Hella Supertone or Sharptone horns shouldn't require hacking into your vehicle's factory electrical system. The GrimmSpeed Hella Horn Wiring Harness provides a professional, plug-and-play solution that eliminates the need for wire splicing, soldering, or crimping. Designed specifically for the 2015+ Subaru chassis, this harness ensures your aftermarket horns receive consistent power while maintaining a clean, OE-style engine bay appearance.
Each harness is constructed with high-grade automotive wire protected by a durable loom to withstand heat and moisture. The connectors are precision-molded to interface directly with the factory horn plug and Hella terminals, significantly reducing installation time and potential failure points.
- Complete plug-and-play installation with no wire cutting or splicing required
- Protective heat-shrink and loom for long-term weather resistance
- Optimized length for clean routing on 2015+ Subaru WRX/STI platforms
- Engineered for use with Hella Supertone and Sharptone horn kits
- Manufacturer Part Number: GRM040026
Authencity Guaranteed
We only sell authentic products from verified brand partners and retail partners globally.
Can’t Find the Part You Need?
Our catalog represents only a portion of the automotive products available through our supplier network. If you cannot find a specific part, brand, or application on our website, submit a request below, and our team will help source it for you.
Please include as much information as possible, such as your vehicle's year, make, model, trim, engine, desired brand, or part number, to help us quickly identify the correct product.
- Choosing a selection results in a full page refresh.
- Opens in a new window.
