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Old 08-15-2009, 09:09 PM
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One reason you don't see many AFR gauges installed is that a good one with a wideband sensor will usually cost about $300 or more. This is outside the price range of most folks, unless they have deep pockets.

Edelbrock also makes a fairly cheap AFR gauge that several places sell, but it won't be as accurate as the ones that use wideband sensors. As someone else mentioned, it also probably does not use a heated sensor, so it has to mounted fairly close to the engine where the exhaust heat will keep it hot.

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