Learn how to install a “Big 3” wiring upgrade in your Honda Civic with this detailed tutorial. This upgrade can be applied to most vehicles on the market, regardless of the year, make, or model. The three main components of the “Big 3” upgrade are an alternator to battery wire upgrade, an engine to chassis ground upgrade, and a battery to chassis ground upgrade.
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In the tutorial, they used products such as Skar Audio OFC 4 Gauge Big 3 Kit, a crimper, wire stripper, heat gun, wire brush, and a Skar Bass package. Other recommended “Big 3” upgrades are available in 4 gauge and 1/0 sizes from brands like Sky High, GP Car Audio, and Skar Audio. Please note that the links provided are paid affiliate links.
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