Help identify this please

Joined
Apr 29, 2014
Messages
128
Location
Omaha, NE
What is the round brass looking part in front of the green top filter? Thanks everyone!
5657390571.jpg
 
Joined
Apr 9, 2013
Messages
952
There is something to be said for keeping the EGR system working. It reduces emissions. These trucks are not easy on the planet, and keeping the emissions (reduction) system operational is a reasonable decision.
 
Joined
Aug 16, 2017
Messages
260
Location
NYC / CT
If youve flown on a plane for more than a couple hours recently i think youve contributed comparable pollution to a year of driving a stinky gas guzzling 80 series.
 
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