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Dynovox 2004-2005 6.6L Many areas have strict emissions regulations, and removing the EGR system could result in fines or failed emissionstests. By removing it, you’re removing a potential point of failure, making your truck more reliable and dependable. Duramax LLY EGR Delete Kit III.
Presently, the main driving standard for emissions output by vehicle powertrains are the US EPA Tier 2 and California LEV-II ULEV regulations. In 1999, the US EPA announced new Tier 2 NOx limits of 0.07gm per mile to replace the existing Tier 1 limits of 1.0gm per mile that were phased in from 2004 to 2009.
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