Originally posted by TheSilverBuick
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MSI or MSII and holley projection 4 900 cfm T/B
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$189 is about as low as they go. No other real options to get a wide band O2 cheaper. It's the controller for it that is so pricey. You can giggle around with a narrow band, and it'd be somewhat like tuning with a carb at that point and just estimating what your AFR's are.
Escaped on a technicality.
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You can set it to make corrections automatically or not. It is very highly recommended to use as a tuning tool. In my case, I watch the AFR's and make manual adjustments, but it's not difficult to set the MS to automatically target the AFR you want and let the MS adjust based on the wideband O2 sensor reading. I don't usually run closed loop on account of a potential sensor failure, I know my tune is still good and the car perfectly drivable. Admittedly, sensor failure is not common if wired up correctly.Escaped on a technicality.
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