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Old 08-13-2020, 12:55 PM   #14
Grady
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Quote:
Originally Posted by pallen View Post
That's a good point, and I checked that. After screwing it all the way down, its almost flush with the inside of the tubing, which is ideal. The hole where you screw it in is raised a bit.

This isn't mine, but it looks just like mine - you can see the holes for the O2 sensors.
I would move your primary down stream and plug the upstream hole.
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