So pretty much is to block the exhaust line that is going to the EGR,and when you remove the EGR to block the hole whit the plate,right?

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my hot rod
http://www.youtube.com/watch?v=uiJ2YYIBxVs
one more
http://www.youtube.com/watch?v=79r9hn9aTuA
and one more
http://www.youtube.com/watch?v=1dKo1E-69f0
Sorry for my broken English!
1984 300sd 301000 MILE