PBG3 - Premium Big 3 Power Upgrade OFC Wiring Kits

The Echo Pro Big 3 Kit (PBG3) is a complete OFC wiring upgrade designed to support car audio systems up to 350 amps, relieving strain on your factory electrical system before it becomes a bottleneck. It replaces the three most critical conductors — battery ground to chassis, chassis to engine block, and alternator positive to battery positive — using true-spec 1/0 AWG oxygen-free copper cable throughout. All hardware needed for a clean install is included.

• System rating: Engineered for audio systems drawing 350A or less.
• Full OFC construction: True-spec 1/0 AWG oxygen-free copper cables deliver maximum conductivity and efficiency.
• Seamless ring terminals: Factory-crimped terminals on all cables plus three additional heavy-duty ring terminals for a secure, corrosion-resistant connection.
• Complete hardware kit: Includes 10 nylon cable clamps, ten ½" #8 Tek screws, and 10 black zip ties for a tidy, professional installation.
• Flexible, durable insulation: Wire jacket resists heat, vibration, and corrosion to protect your vehicle's components long-term.
• Addresses headlight dimming: Stabilizes voltage delivery under high-demand conditions common with powerful amplifier systems.