Big 3 Upgrade Kits – Custom Built

Product Improvement – All Kits Now Include Translucent Black Ground Cables!

If you own a vehicle with the battery in the trunk or under the rear seat, then our standard Big 3 Upgrade Kits won’t work for you. No worries, we’ll build a kit specific to your application!

For example, consider the following kit we built for a customer with a 2011 Chrysler 300C.

We’re happy to build you a custom kit for any vehicle that one of our pre-made kits won’t accommodate!  Please Contact Us for specifics.

Big 3 Upgrade Kit Specifics

As with all of our kits, our Big 3 Upgrade Kits include the very best components available. Rest assured, this is NOT three chunks of welding cable in a Ziploc® baggie! Each kit is incredibly well thought out and installation is a breeze. No crimping or soldering required!

The Best Cable

We use the very best cable we can get our hands on – our own!  It meets full American Wire Gauge (AWG) specification, is Pure Oxygen Free Copper (OFC), and tinned for corrosion resistance. Other companies use Copper Clad Aluminum (CCA) cable in an effort to reduce cost. CCA has 30-40% greater resistance per foot than OFC, so while it may be cheaper, it also comes at the expense of performance.

Battery CableSpecifically, our OFC cable has the following strand count:

  • 1/0 AWG Cable – 4,704 strands!
  • 2 AWG Cable – 2,989 strands!
  • 4 AWG Cable – 1,862 strands!
  • 8 AWG Cable – 735 strands!

The fine-strand construction and soft jacket offer excellent flexibility, far superior to standard battery cable and better than the best welding cable!

The Best Parts

We custom assemble all cables in house, and building the best cable requires the best parts. All eyelets used in the construction of our cables are the heaviest duty in the industry. They have up to twice as much copper weight as standard copper lugs, longer barrels, which permit better crimping, and are tin-plated to resist corrosion. These are simply the best quality eyelets we can find and they are ideal for high current applications!

Standard Copper Eyelet vs. Thick Tinned Eyelet
Standard Copper Eyelet vs. Thick Tinned Eyelet
Standard Copper Eyelet vs. Thick Tinned Eyelet (Standing)
Standard Copper Eyelet vs. Thick Tinned Eyelet
Installed Eyelet with Super-Thick Adhesive-Lined Heat Shrink
Installed Eyelet with Super-Thick Adhesive-Lined Heat Shrink
All eyelets are installed via our crimping press and insulated with the thickest adhesive lined heat shrink available. This super-thick adhesive-lined heat shrink tubing prevents battery acid or oxidation from entering the connection itself.

Additionally, we include a complete assortment of Grade 5 Hardware with each kit. You’ll have every single thing you need to get the job done right the first time. We guarantee it!

Step By Step Full Color Instructions

Each kit includes complete step by step instructions in full color so that your installation goes smoothly! They’re super easy to install and require only common hand tools to install them.

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