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> You are aware a catalytic converter is a wear part that is a component of the exhaust system, right?

Not op but I didn't realize it was a wear part, and I would imagine that most people don't either given how long they last on modern vehicles.

Your explanation is helpful, but the tone of this comment is needlessly aggressive. The goal here should be to help each other learn, not shoot each other down.

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Civil discourse is getting harder and harder to find online. HN generally isn't too bad, but the weekends seem to be the worst. I think the comments and moderation gets dominated by people with nothing better to do on a weekend.

I think it would be nice if HN periodically made you read a short click-through agreement to remind people of the tone we expect here.

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