Ignitions and Electrical› Wiring Components

GP Car

XS Power Big 3 Upgrade Kit

$99.99

SKU: BIG3XP

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The XS Power BIG3XP is a Big 3 upgrade kit designed to enhance a vehicle's electrical system. It upgrades key battery cables to reduce voltage drop and increase current flow, providing more robust electrical support for demanding applications like audio systems and lighting. The kit features 1/0 AWG Copper-Clad Aluminum (CCA) XP FLEX cables in blue and black, along with included heat shrink and crimp terminals for secure connections.
Show original supplier description
The XS Power BIG3XP XP Flex Big 3 Upgrade Kit provides a high-performance electrical upgrade for your vehicle. It is particularly beneficial for vehicles with power-hungry accessories such as high-output audio systems or extensive lighting setups, ensuring greater reliability and performance. The kit features 1/0 AWG XP FLEX cable constructed from Copper-Clad Aluminum (CCA). The cables are insulated for flexibility and ease of routing, with distinct blue and black finishes to easily differentiate positive and ground connections. Included in the kit are heat shrink tubing and crimp terminals to facilitate secure and professional-looking connections. Installation is intended to be straightforward for those familiar with automotive wiring, utilizing existing mounting points and requiring no drilling. Clear instructions are provided to guide the proper routing and connection of the cables to the vehicle's battery terminals and chassis ground. Designed for universal application, this Big 3 upgrade kit is intended to fit a wide range of vehicles. However, the manufacturer notes that some adaptation may be necessary depending on the specific vehicle's configurations or interior layout. The kit is rated for up to 250 amps.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandGP Car
Part NumberBIG3XP
CategoryIgnitions and Electrical
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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