Ultimate Auto Quiz: Can You Name These Car Parts?
This part helps clean up something. What is it?

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The catalytic converter reduces harmful emissions from the engine. It uses a catalyst to trigger a chemical reaction that changes carbon monoxide, hydrocarbons, and nitrogen oxides into water vapor and carbon dioxide.
Justin Sullivan/Getty Images
Justin Sullivan/Getty Images
This part helps clean up something. What is it?
- Muffler
- Exhaust Manifold
- Catalytic Converter
- Oxygen Sensor
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