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Actually, even though its still a 5.9, because its an emissions diesel, you cannot remove the emission devices. It will have an EGR and CAT & muffler...Meaning to pass inspection, the computer must be read, and all devices intact. And with winters around here, they do tend to only last a few years.



The '07 5.9 does NOT have an EGR valve. That did not come into play until they changed to the 6.7 engines. These engines are exactly the same from 2005-2007. It will have a Catalytic converter and a muffler but no sensors in the exhaust like a 6.7 does. These are the only emissions items that the 05-07 5.9 trucks had.