Casper's Audible Knock Detector. BRAND NEW!

BRAND NEW still sealed in the container with instructions Casper's Audible Knock Detector.

"Smart" unit will warn you only when etonation is moderate to severe—otherwise, it's silent. Designed to wire directly to the signal wires at your ECM. Audibly warns the driver with a high-pitched PIEZO alarm. Moderate detonation "chirps", severe detonation produces a long tone, directing the driver to lift off the throttle. Tone is 85dB, and can be heard above the sound of the exhaust. Requires the factory ESC module for operation.

$45.00 shipped

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