Is not the EGR a threaded end with a taper? the tube the EGR that connects to the header has a flange end with a nut to go onto threads.
Here are a few pictures that I just took of my EGR bung and setup.
It is an M22 thread, and yes the stock bung may have a flare (tapper) inside, this one does not and it still worked.
As you can see here,
the stock EGR threaded fitting is not the actual flare/tapper, the threads are straight cut. There is a stainless tube that goes through the threaded fitting and is then flared using a flaring tool. As well the tubing for the EGR is bent, there are no angled fittings used.
Here is the M22 plug that I bought from the local parts store.... No leaks
you delete it to help the engine get warmer faster? that's not quite the right logic because the EGR increases your intake air temperature (helping with emissions) but because your increasing the inlet air temp it should actually help it heat up faster.
Well I'm not 100% on these Ford engines, but on most other vehicles the EGR does not effect idle or warm up as it is only activated under certain engine loads/conditions and idle isn't one of them.
That has a 90 degree bend, a reducer, and then a nipple for the nut on the EGR tube to secure on to. but likely not a very good seal because the pipe is not going to have the 60 degree angle taper that is needed.
I agree that image provided by the OP above is a completely ghetto rigged setup, nothing on that looks OEM... hell it isn't even automotive. See that fitting that clearly has CHINA stamped on it, that's a plumbing fitting! That being said, at the end of the day you do not require 60* flare for it to seal properly, sure it helps, but not required.
Op if you are looking for some OEM EGR parts let me know, I have the complete setup that is not is use!