Snap-On Exhaust Gas Analyzer AS-IS - $65 (Wrentham, MA)

condition: good

model name / number: MT497A

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I used to use this to tune a a racy Camaro I used to own for power and efficiency. Model MT497A could measure unburned CO and HC in real time as I made changes. Powered it up for this posting and now both meters peg as soon as it warms up. I have the manual with schematic on .pdf to go with it. A terrific tool for anyone who can figure out what went wrong.

post id: 7954379037

posted: 2026-08-18 15:07

updated: 2026-10-11 20:36

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Snap-On Exhaust Gas Analyzer AS-IS - tools - by owner - sale -...

I used to use this to tune a a racy Camaro I used to own for power and efficiency. Model MT497A could measure unburned CO and HC in real time as I made changes. Powered it up for this posting and...