Isn't unplugging the erg considered as tampering...Only a california emissions truck will have a CEL. And I have never been able to duplicate rumors of EGR cracking open under added boost. Using EFI, the egr valve position sensor can be monitored.
I have a blocker plate, and feel it was a waste of effort.
Since tampering with the EGR system is a federal crime, with heavy fines, that should also weigh into the decision.