G4 KnockLink Kit This kit includes the G4 KnockLink visual warning light and a knock sensor with a wiring harness. KnockLink is a self-calibrating, visual knock warning tool designed for tuning, street use, and racing. Features: Self-calibrating: Requires no time-consuming adjustments for gain, frequency, or noise. Easy installation: Plug in, start the engine, and the system is ready to use. Advanced signal processing: The microprocessor continuously analyzes the knock signal and warns of detonation. 3D profiling: RPM and load are automatically mapped to adapt to engine noise characteristics. LED Modes: Dim Blue: KnockLink is powered on and waiting for the engine to start. Blinking Blue: KnockLink is calibrating after the engine has started. Dim Green: KnockLink is listening for knock and adapting to the engine noise profile. Blinking Red: KnockLink has detected knocking. Avoid heavy throttle and seek professional help. Perfect for: Tuning, street use, and racing, where engine reliabil