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http://www.ebay.com/itm/Toyota-Supra-EGR-Block-Off-Plates-Blocker-2JZ-2JZ-GTE-MKIV-93-98-TWIN-TURBO-/321275927213?pt=Motors_Car_Truck_Parts_Accessories&hash=item4acd899aad&vxp=mtrthis is what I bought and worked perfectly.
I just went to lowes $10 for a piece of 1/4 in steel was a bit of a pain to cut but got her done
Same here, I used scrap metal lying around the garage from old projects, traced the shape out from the various EGR valves, pipes, gaskets, etc., and cut them with Dremel cut-off wheels then ground the edges smooth. Each one only takes a few minutes once you get the hang of it.