Upgrade your Subaru’s horn system effortlessly with the GrimmSpeed Hella Horn Wiring Harness, designed specifically for 2002-2014 WRX, 2004-2014 Subaru WRX STI, 2002-2015 Legacy, Outback, Forester, and Impreza models. This premium harness eliminates the hassle of wiring Hella horns by providing a pre-assembled, OEM-quality solution that plugs directly into your vehicle and GrimmSpeed BroTie Bracket, saving you time and reducing installation stress.

Crafted with automotive-grade 16ga wire, this harness ensures minimal resistance for maximum horn volume. Heat shrink terminals deliver durable, reliable crimp-on connections, while protective wire sleeving guards against abrasion and keeps the installation clean. The plug-n-play design allows for quick installation and removal without modifications. Although it doesn’t include a relay by default, the harness can be adapted for advanced relay setups if desired.

Ideal for Subaru enthusiasts seeking a straightforward, high-quality horn wiring upgrade, this harness fits multiple Subaru models and years. Enhance your vehicle’s audio alert system with confidence—shop the GrimmSpeed Hella Horn Wiring Harness today at Subimods.