Join Date: Nov 2010
Location: South Fayette/Pittsburgh PA
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depends on the year. I will just block off 03-04 trucks, 05+ has a scoop in the up-pipe to divert more exhaust gasses towards the EGR cooler. This scoop becomes a restriction when the cooler inlet is blocked off.
What I did on my truck was install a 04 up-pipe (no scoop) and then blocked it off. That way if I ever had to reinstall an EGR cooler it would be a quicker process.
When I did it though the 04 up-pipe was much cheaper than it is now.
Ford Senior Master Tech
2015 F-250 XLT 6.7L
2006 F-250 6.0L SOLD