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<blockquote data-quote="ObTechAudio" data-source="post: 8268735" data-attributes="member: 660912">The big 3 upgrade is basically a routine upgrade many do to help better their electrical output. It consists of three cables being upgraded under the hood. Some will install the big 3 as well as upgrading their alternator to increase amperage and current flow. The big 3 and alternator upgrade will allow you to charge larger / more batteries and from what I&#039;ve personally found, help charge the electrical system a tad bit faster. I personally had bad headlight dimming and voltage drop. I upgraded my alternator and big 3 - now I have 0 electrical problems.The big 3 consists of running true 0 gauge in three locations: from (+) post on batter to (+) post on alternator, (-) post on battery to stock ground location, (-) post on battery to many times the alternator rack.There are many youtube videos to help. Oh and as the wiring goes, wire those subs up to a 1 ohm load.</blockquote>

[QUOTE="ObTechAudio, post: 8268735, member: 660912"] The big 3 upgrade is basically a routine upgrade many do to help better their electrical output. It consists of three cables being upgraded under the hood. Some will install the big 3 as well as upgrading their alternator to increase amperage and current flow. The big 3 and alternator upgrade will allow you to charge larger / more batteries and from what I've personally found, help charge the electrical system a tad bit faster. I personally had bad headlight dimming and voltage drop. I upgraded my alternator and big 3 - now I have 0 electrical problems. The big 3 consists of running true 0 gauge in three locations: from (+) post on batter to (+) post on alternator, (-) post on battery to stock ground location, (-) post on battery to many times the alternator rack. There are many youtube videos to help. Oh and as the wiring goes, wire those subs up to a 1 ohm load. [/QUOTE]

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