Add more power to your engine. The Unichip upgrades your engine to add power. The Ultimate Power Upgrade. Tested for over a decade, the Unichip is designed to take full advantage of the hidden power in your engine, and only takes minutes to install. The Unichip is a multi-processor computer-designed to talk with your engine and program it for maximum performance. A custom-designed harness made specifically for your vehicle makes this possible, connecting inline with the existing factory connectors.