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52mm Audio Knock Detection Gauge Knock Detective

KNOCK KNOCK.
WHO'S THERE?

YOUR ENGINE F*#CKING ITSELF

Take all that guesswork out of tuning. Grab yourself a Knock Detective audio knock gauge, a set of headphones and put your ears inside the combustion while you tune.

PAGE UP WITH
CONFIDENCE

FWLR's products were created out of necessity. After turning his 4G63 up way too much, the factory ECU knock control went crazy. In order to push forward he built the first Knock Detective prototype. The rest is history. From his workshop, to his cars, to your project. He knows his tools will work for you, because they work for him.

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There is an active  community of fellow tuners on the FWLRtuning Discord server. Share datalogs, ask questions, and show off your SICK 1991 Mazda Miata by clicking the link below.

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