NVX Big 3 Upgrade Kits
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Big 3 Upgrade Kits

The Big 3 Upgrade is a great way to improve the performance of the electrical system in your vehicle.  A Big 3 Upgrade is a swap or addition of an alternator positive cable, a negative battery cable that runs from the battery to the car chassis and a chassis grounding cable that runs to the engine block. The Big 3 Upgrade should always be the first upgrade performed on your vehicle's electrical system.

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