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ADDED TO YOUR CART!
Detector, Audible Knock, 1978-87 Regal, w/ Factory ESC
ADDED TO YOUR WISHLIST!
"Smart" unit will warn you only when detonation is moderate to severe. Splices directly to your engine control module wiring and makes an 85db chirp or long tone depending on how severe detonation is which indicates driver to ease off the throttle. Installation instructions included.
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