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O2 Defouler on hood exit downpipe?

Old 03-09-2019, 05:51 PM
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Default O2 Defouler on hood exit downpipe?

I am running my DP out my hood and as a result of that my DP is only about a foot long. The O2 bung was welded as far away from the hot side as possible but I'm worried this will put my AEM too close to direct airflow. Should I get one of those "defouler" plugs people use to keep from having to replace my O2 sensor all the time? Or should I be fine to leave it right in the middle of the pipe?
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Old 03-09-2019, 07:53 PM
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Ask the Honda kids what they do.
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Old 03-09-2019, 08:32 PM
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You should run a normal exhaust is what you should do
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Old 03-09-2019, 09:33 PM
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nah, checking off some car related bucket list items
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Old 03-10-2019, 01:29 AM
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Sounds too short. I'm sure an engine builder could chime in and recommend a primary length and tube size for an RPM range. But will they? IIRC the "old school" method was to use tire crayon and draw a line down the header, and where it quit running was the ideal primary length for that RPM.
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