Turbo XS Hella Horn Wiring Harness — Fits 2015-2021 Subaru WRX STI

SKU: TXSWS15-HHWH
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Sale price$48.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Turbo XS

Turbo XS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Turbo XS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Turbo XS Plug-and-Play Hella Horn Wiring Harness for Subaru WRX STI

Upgrade your Subaru WRX STI's horn with the powerful sound of Hella horns using the Turbo XS Plug-and-Play Wiring Harness. Designed specifically for the 2015-2021 Subaru WRX STI models, this harness simplifies the installation process, eliminating the need for complex wiring modifications. Enjoy the convenience of a direct-fit solution that ensures your new Hella horns are powered correctly and safely.

Effortless Horn Upgrade:

  • Plug-and-Play Design: Connects directly to your vehicle's existing horn wiring, requiring no cutting or splicing.
  • Vehicle Specific Fitment: Engineered for a perfect fit on 2015-2021 Subaru WRX STI models.
  • High-Quality Components: Constructed with durable materials and reliable connectors for long-lasting performance.
  • Supports Hella Horns: Optimized to provide the necessary power and signal for most Hella horn applications.
  • Simplified Installation: Saves time and effort, allowing you to enjoy your new horn sound sooner.

This wiring harness is essential for a clean and professional installation of aftermarket Hella horns. It ensures proper electrical connections, preventing potential issues and providing peace of mind. Whether you're aiming for a more audible warning signal or a custom aesthetic, this harness makes the upgrade straightforward and reliable.

Fits:

  • 2015 Subaru WRX STI Base
  • 2015 Subaru WRX STI Launch Edition
  • 2015-2021 Subaru WRX STI Limited
  • 2016 Subaru WRX STI Series.HyperBlue
  • 2017 Subaru WRX STI
  • 2018 Subaru WRX STI Type RA
  • 2018-2021 Subaru WRX STI
  • 2019 Subaru WRX STI S209
  • 2020 Subaru WRX STI
  • 2021 Subaru WRX STI

Make your Subaru stand out and be heard. Get the Turbo XS Hella Horn Wiring Harness at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

Product Details

Product Description
Part Numbers
Sizing & Fit

About Turbo XS

Turbo XS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Turbo XS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Turbo XS Plug-and-Play Hella Horn Wiring Harness for Subaru WRX STI

Upgrade your Subaru WRX STI's horn with the powerful sound of Hella horns using the Turbo XS Plug-and-Play Wiring Harness. Designed specifically for the 2015-2021 Subaru WRX STI models, this harness simplifies the installation process, eliminating the need for complex wiring modifications. Enjoy the convenience of a direct-fit solution that ensures your new Hella horns are powered correctly and safely.

Effortless Horn Upgrade:

  • Plug-and-Play Design: Connects directly to your vehicle's existing horn wiring, requiring no cutting or splicing.
  • Vehicle Specific Fitment: Engineered for a perfect fit on 2015-2021 Subaru WRX STI models.
  • High-Quality Components: Constructed with durable materials and reliable connectors for long-lasting performance.
  • Supports Hella Horns: Optimized to provide the necessary power and signal for most Hella horn applications.
  • Simplified Installation: Saves time and effort, allowing you to enjoy your new horn sound sooner.

This wiring harness is essential for a clean and professional installation of aftermarket Hella horns. It ensures proper electrical connections, preventing potential issues and providing peace of mind. Whether you're aiming for a more audible warning signal or a custom aesthetic, this harness makes the upgrade straightforward and reliable.

Fits:

  • 2015 Subaru WRX STI Base
  • 2015 Subaru WRX STI Launch Edition
  • 2015-2021 Subaru WRX STI Limited
  • 2016 Subaru WRX STI Series.HyperBlue
  • 2017 Subaru WRX STI
  • 2018 Subaru WRX STI Type RA
  • 2018-2021 Subaru WRX STI
  • 2019 Subaru WRX STI S209
  • 2020 Subaru WRX STI
  • 2021 Subaru WRX STI

Make your Subaru stand out and be heard. Get the Turbo XS Hella Horn Wiring Harness at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

Product Details

Product Description

About Turbo XS

Turbo XS engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Turbo XS lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Turbo XS Plug-and-Play Hella Horn Wiring Harness for Subaru WRX STI

Upgrade your Subaru WRX STI's horn with the powerful sound of Hella horns using the Turbo XS Plug-and-Play Wiring Harness. Designed specifically for the 2015-2021 Subaru WRX STI models, this harness simplifies the installation process, eliminating the need for complex wiring modifications. Enjoy the convenience of a direct-fit solution that ensures your new Hella horns are powered correctly and safely.

Effortless Horn Upgrade:

  • Plug-and-Play Design: Connects directly to your vehicle's existing horn wiring, requiring no cutting or splicing.
  • Vehicle Specific Fitment: Engineered for a perfect fit on 2015-2021 Subaru WRX STI models.
  • High-Quality Components: Constructed with durable materials and reliable connectors for long-lasting performance.
  • Supports Hella Horns: Optimized to provide the necessary power and signal for most Hella horn applications.
  • Simplified Installation: Saves time and effort, allowing you to enjoy your new horn sound sooner.

This wiring harness is essential for a clean and professional installation of aftermarket Hella horns. It ensures proper electrical connections, preventing potential issues and providing peace of mind. Whether you're aiming for a more audible warning signal or a custom aesthetic, this harness makes the upgrade straightforward and reliable.

Fits:

  • 2015 Subaru WRX STI Base
  • 2015 Subaru WRX STI Launch Edition
  • 2015-2021 Subaru WRX STI Limited
  • 2016 Subaru WRX STI Series.HyperBlue
  • 2017 Subaru WRX STI
  • 2018 Subaru WRX STI Type RA
  • 2018-2021 Subaru WRX STI
  • 2019 Subaru WRX STI S209
  • 2020 Subaru WRX STI
  • 2021 Subaru WRX STI

Make your Subaru stand out and be heard. Get the Turbo XS Hella Horn Wiring Harness at GGCRACING.

Vehicle Fitment

Years Make Model Trim
2015 Subaru WRX STI Launch Edition
2015-2021 Subaru WRX STI Base
2015-2021 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI S209

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