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My car did not come with the additional ULEV emissions equipment on it. Does anyone know what that includes? I haven't been able to get a good look under my car yet, so I'm not sure if it's precats or what.

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Reading Topic: ULEV euipment

From another topic in the Engine section about modifying exhaust, I'd say the ULEV equipment is simply higher efficiency cats in your exhaust system, and maybe some extra things here and there like exhaust recirculation. Anyone else know for sure?
 
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