I've read alot on here about the reason to block the egr, so I just ordered my blocker plate from Jess n 'em at Husker Diesel. I have 75K on my lmm (have used Edge Race for the last 7k w/ dpf delete pipe) I saw some pics on here of buildup. My ? is, What should I take apart & clean while installing the blocker plate? Does anything need cleaning or will it eventually begin to break apart and sorta clean itself after blocking?