EGR delete ECM tuning; block off EGR gas flow; unplug EGR valve connector; unplug EGR sensor connectors. ECM tuning: Our ECM tuning will allow. I looked into doing a PDI kit on my 07 ISX last winter. I didn't like the price ($4k) or mandatory bump in HP to HP. This kit completely. Just wondering if anyone out there has done an EGR deletion on their Cummins ISX and how it turned out.