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Exhaust & Emissions

This section can help you keep your exhaust system working properly. Learn how mufflers, catalytic converters and oxygen sensors work.

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What can you do to reduce your car's emissions?

To reduce your cars emissions, you can help its catalytic converter work more efficiently by preheating it, or you can inject a urea solution into your exhaust pipe. Learn what you can do to reduce your car's emissions in this article.


If you have a vehicle that needs to be tested for emissions, you might want to check on the condition of your catalytic converter. So what is it and what does it do? See more »