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Perform the big 3-upgrades for your vehicle with our exclusive big 3 upgrade kits and packages. Buy now for fast and free shipping!
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Discontinued Big 3 Upgrade Kits

1/0 AWG High Grade CCA + 60% OFC Big 3 Upgrade Kit

• 1/0 AWG High Grade CCA + 60% OFC Big 3 Upgrade Kit
• Electrical System Upgrade to get the most electrical current from you car
• Upgrades the factory wires that are not intended to handle the demands of an aftermarket amplified stereo system
• 0 gauge terminals are factory soldered and welded to the 0 gauge cables

DISCONTINUED

Sonic Exclusive Big 3 Upgrade Combo Package (1/0 AWG Hyper-flex Cable)

Big 3 Upgrade Combo Kit • Includes Kicker 1/0 Power & Ground Cable • Kicker Battery Terminal Clamp • Helps Eliminate Dimming Headlights • Stops Drops in Voltage • Improves Vehicles System Charging • Includes Wire & Cable Cutter/Stripper

DISCONTINUED

Sonic Exclusive Big 3 Upgrade Combo Package (1/0 AWG Cable)

Big 3 Upgrade Combo Kit • Includes Tsunami 1/0 Power & Ground Cable • Tsunami Battery Terminal • Helps Eliminate Dimming Headlights • Stops Drops in Voltage • Improves Vehicles System Charging • Includes Wire & Cable Cutter/Stripper

DISCONTINUED

Sonic Exclusive Big 3 Upgrade Combo Package (1/0 AWG Cable)

Big 3 Upgrade Combo Kit • Includes Tsunami 1/0 Power & Ground Cable • Tsunami Battery Terminal • Helps Eliminate Dimming Headlights • Stops Drops in Voltage • Improves Vehicles System Charging • Includes Wire & Cable Cutter/Stripper

DISCONTINUED

Sonic Exclusive Big 3 Upgrade Combo Package (1/0 AWG Flat Wire)

Big 3 Upgrade Combo Kit • Includes Xscorpion 1/0 Power & Ground Cable • Xscorpion Battery Terminals • Helps Eliminate Dimming Headlights • Stops Drops in Voltage • Improves Vehicles System Charging • Includes Wire & Cable Cutter/Stripper

DISCONTINUED

Sonic Exclusive Big 3 Upgrade Combo Package (1/0 AWG Flat Wire)

Big 3 Upgrade Combo Kit • Includes Xscorpion 1/0 Power & Ground Cable • Xscorpion Battery Terminals • Helps Eliminate Dimming Headlights • Stops Drops in Voltage • Improves Vehicles System Charging • Includes Wire & Cable Cutter/Stripper

DISCONTINUED