{"product_id":"grimmspeed-02-14-subaru-wrx-sti-hella-horn-wiring-harness","title":"GrimmSpeed 02-14 Subaru WRX\/STI Hella Horn Wiring Harness","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: 040005 \/ \u003cstrong\u003eUPC\u003c\/strong\u003e: 63206084\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eGrimmSpeed Hella Horn Wiring Harness for 2002-2014 Subaru WRX and STI – Plug-and-Play Upgrade for Clear, Powerful Sound\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eYhe GrimmSpeed Hella Horn Wiring Harness, designed specifically for 2002-2014 WRX and STI models. This pre-assembled harness delivers a direct connection to Hella horns, ensuring full volume output without the clutter of extra relays or fuses. Built with automotive-grade materials, it connects seamlessly to your factory wiring in under a minute, providing a factory-like finish that withstands daily driving demands.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePrecise Vehicle Fitment\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThis harness fits a wide range of Subaru models from the early 2000s, confirmed through extensive testing on GD, GR, and VA chassis platforms. Compatible vehicles include:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru Impreza (2002-2012)\u003c\/b\u003e: All trims, including base, WRX, and WRX STI variants.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru WRX (2002-2014)\u003c\/b\u003e: Sedan and hatchback models, covering standard WRX, WRX Limited, WRX Premium, and WRX TR editions.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru WRX STI (2004-2014)\u003c\/b\u003e: All STI models, including STI Limited and STI Special Edition.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru Forester (2003-2008)\u003c\/b\u003e: Base, X, XS, XT, and XT Limited trims.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru Legacy (2002-2015)\u003c\/b\u003e: 2.5i, 2.5GT, 3.0R, 3.6R, GT, and GT spec.B models, including Limited and Premium variants.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSubaru Outback (2002-2015)\u003c\/b\u003e: 2.5i, 3.0R, 3.6R, Base, H6, XT, and XT Limited editions, covering L.L. Bean and VDC configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eVerify your exact year, make, and model using the Subaru VIN decoder or consult your owner's manual for confirmation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in Your Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEvery order includes:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e(1) Pre-assembled GrimmSpeed Hella Horn Wiring Harness with 16-gauge automotive-grade wire for low-resistance power delivery.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eHeat-shrink crimp terminals for secure, weather-resistant connections.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eProtective black nylon sleeving to guard against abrasion, heat, and mechanical stress.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eOEM-style plug connectors for instant integration with factory harness no cutting, splicing, or soldering required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003ePart Number: 040005 (also listed as GRM040005)\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eUPC: 63206084\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Specifications and Build Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eWire Gauge\u003c\/b\u003e: 16 AWG, tinned copper for corrosion resistance and maximum current flow to achieve peak horn decibel levels.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eTerminals\u003c\/b\u003e: Insulated heat-shrink design prevents shorts and ensures long-term reliability in engine bay conditions.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSleeving\u003c\/b\u003e: Durable braided nylon exterior for a professional, tucked-away appearance.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eInstallation\u003c\/b\u003e: True plug-and-play routes cleanly behind the core support and mates directly to Hella horn leads and OEM horn circuit.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eRelay Option\u003c\/b\u003e: Ships without a relay for simplicity (testing shows negligible volume gain from relays, reducing failure risks); easily modifiable to add one if preferred.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eItem Weight\u003c\/b\u003e: Approximately 0.5 lbs (lightweight design minimizes added mass).\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Box Dimensions\u003c\/b\u003e: 6 inches (L) x 2 inches (W) x 5 inches (H).\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Weight\u003c\/b\u003e: Approximately 4 lbs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhy This Harness Stands Out for Subaru Owners\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eDrivers choose the GrimmSpeed Hella Horn Wiring Harness because it eliminates the guesswork of custom wiring jobs that often lead to weak signals or intermittent failures. Paired with Hella Supertone horns, it produces a sharp, penetrating 118-118 dB dual-tone alert that's audible over traffic far beyond stock Subaru horns while keeping your engine bay organized. No more muffled sounds or exposed wires, this setup handles rain, road salt, and vibrations without faltering. Thousands of WRX and STI enthusiasts rely on it for its straightforward install and consistent performance, making it the straightforward pick for anyone serious about safety and sound on the road.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eReady to hear the difference? Add the GrimmSpeed Hella Horn Wiring Harness (SKU 040005) to your cart today and experience reliable horn power tailored for your Subaru.\u003c\/p\u003e","brand":"GrimmSpeed","offers":[{"title":"Default Title","offer_id":43717556076623,"sku":"GRM040005","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_040005_UPC_63206084.jpg?v=1761069549","url":"https:\/\/www.blackopsautoworks.com\/products\/grimmspeed-02-14-subaru-wrx-sti-hella-horn-wiring-harness","provider":"Black Ops Auto Works","version":"1.0","type":"link"}