I take it THIS is the EGR valve. Plugging it of is a good idea right? Thin metal plate under the 2 bolt flange should do it no???

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2003 Ford Crew Cab 6.0 Powerstroke Diesel 6 spd 4x4(For Sale)

1981 MB 300SD 190,000 miles Gray with cream interior.(sold)
1981 MB 300SD 239,000 miles Cream with Brown interior.(sold)