Big 3 Wiring Kits
SacCityCorvette’s BIG 3 Wiring Kit for your C5/C5z

With all of the high-tech electronics that have been incorporated into your C5 Corvette, not to mention additional aftermarket electronics and stereo systems, it can take a toll on the factory charging systems ability to keep up. Especially if, over time, connections have become corroded.  Installing a BIG 3 upgrade can be very beneficial as many on the Corvette forum will tell you. SacCityCorvette has developed a BIG 3 installation kit for the C5 Corvette. It is made from all high quality materials and designed so it will not look like an aftermarket universal kit. For safety it has a 125 amp heavy duty fuse, uses automotive grade 4 gauge wire. (not the type car stereo shops use) The positive wires have a High-Strength Slit Corrugated Sleeving just like the factory wiring over them for additional protection and a factory look. All connections are hydraulically crimped and come with all the hardware needed to do the install. The installation takes about thirty minutes with simple hand tools. If you have doubt that this BIG 3 kit will make any difference in your charging system, please check out our test video below and see how the voltage increases when we connect it!  Also see the Installation video below.  Avaliable for Side Post Mounting, Top Post with factory Clamps and Top Post with aftermarket clamps.

Testing the Big 3 
Watch how the voltage improves when we connect the Big 3
Test was done on our California C5 with no rust or corrosion issues and electrical system in perfect working order. 
Side Post Battery Big 3
Only $139.95
Solution Graphics
Installation Video
Look at how easy it is to install the Big 3
Top Post Battery Big 3
Only $149.95
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If you still have the factory style top mount cables, this will be the Big 3 you want. Its a cleaner install as the picture of cable mounted on factory clamp shows. Just slip cable on battery clamp mounting stud and snug down supplied stainless nut.
 Big 3 Top Post with Factory Clamps
NO cutting or altering your factory wires!

Top Post Battery Big 3
Only $129.95
 Big 3 Side Post
NO cutting or altering your factory wires!

 Big 3 Top Post with Aftermarket Clamps
NO cutting or altering your factory wires!

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Because of the high demand of this product there is a same day to 3 day lead time to ship. Sorry for any inconvenience!