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SKU: GRM.1105.1.0
GrimmSpeed Hella Horn Wiring Harness – 2022-2025 Subaru WRX (VB)
The GrimmSpeed Hella Horn Wiring Harness is the cleanest and easiest way to install aftermarket Hella horns on your 2022-2025 Subaru WRX (VB chassis). This plug-and-play harness eliminates the need for cutting, splicing, or modifying factory wiring, making the install quick, professional, and fully reversible.
It includes a pre-wired relay and fuse for safe, reliable operation while retaining full functionality of your factory horn button and steering wheel controls.
Designed specifically for the VB WRX, this harness delivers a perfect fit and finish, allowing you to upgrade to louder, more aggressive Hella horns without any hassle or warning lights.
Key Features
- Plug-and-Play Design – No cutting or splicing of factory wiring required
- Includes Relay & Fuse – Pre-wired for safe and reliable horn operation
- Factory Horn Button Compatible – Retains full use of your stock horn button and steering wheel controls
- Vehicle-Specific Fitment – Precision-engineered for the 2022-2025 Subaru WRX (VB)
- Clean, Professional Install – Maintains a factory-like appearance under the hood
- High-Quality Components – Durable connectors and wiring built for long-term reliability
| Spec | Detail |
|---|---|
| Part Number | GRM.1105.1.0 |
| Brand | GrimmSpeed |
| Type | Hella Horn Wiring Harness |
| Compatibility | 2022-2025 Subaru WRX (VB Chassis) |
| Installation | Plug-and-Play (No Cutting or Splicing) |
| Includes | Relay, Fuse, and All Necessary Connectors |
| Country of Origin | United States |
| Warranty | GrimmSpeed Limited Warranty |
Whats Included
- GrimmSpeed Hella Horn Wiring Harness
- Pre-wired Relay and Fuse
- All necessary connectors and hardware
- Installation instructions
Product Notes
- Specifically designed for the 2022-2025 Subaru WRX (VB platform)
- Works with most aftermarket Hella horn kits
- Professional installation recommended for the cleanest result
Installation Notes
- Plug-and-play installation no cutting or splicing required
- Estimated time: 30–60 minutes
- Professional installation recommended for optimal routing and fitment
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 2022-2025 | Subaru | WRX (VB Chassis) | Hella Horn Wiring Harness (Plug-and-Play) |
Why Choose GrimmSpeed Hella Horn Harnesses?
- Engineered specifically for the VB WRX platform for a perfect fit
- Eliminates the hassle of custom wiring while maintaining factory functionality
- High-quality components built for reliability and longevity
- Made in the USA by a trusted Subaru performance brand
Frequently Asked Questions
-
Q: Will this harness work with my 2024 Subaru WRX?
A: Yes, it is specifically designed for all 2022-2025 Subaru WRX (VB) models. -
Q: Do I need to cut any factory wires?
A: No, this is a true plug-and-play harness with no cutting or splicing required. -
Q: Does it retain the factory horn button?
A: Yes, the harness is designed to work with your factory horn button and steering wheel controls. -
Q: Is professional installation recommended?
A: Recommended for the cleanest routing and best long-term results.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: In stock – ships same or next business day
- Packaging: Secure GrimmSpeed retail packaging
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Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
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I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
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Installation was easy. The price is good and it looks great on the truck.
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