Big 3 Upgrade Kits
Product Improvement - All Kits Now Include Translucent Black Ground Cables!
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The most popular car audio upgrade in the world - the Big 3! We've been doing this LONG before it even had a name (think 1990 or so), so it only made sense that we'd build and offer the best kit money can buy!
CLICK to read our white paper on the Big 3 Upgrade so you can learn the real benefit and understand exactly why we do it the way we do it.
Our Big 3 Upgrade Kits address the following:
We offer Big 3 Upgrade Kits for Top Post Batteries and Side Post Batteries. If you own a vehicle with a rear mounted battery, we can custom build a kit to suit you.
"Outstanding. Parts were incredibly well constructed and you clearly did your homework. My grizzled old mechanic was very impressed and that takes some doing. The car overall now is just running better as well. This wasn't just an audio fix, it was an electrical system fix. Thanks for making such a great product."
Ryan F - Greenfield, WI
"All top notch and worth
David B - Orlando, FL
Click on any of the below to view our selection: