Came across this today

[stevegrutz]

Hey rawze I pulled a x15 apart that had the egr cooler delete with the blocked off water pump, and I couldn’t believe what I was seeing. Not only was 5&6 completely cooked but basically every hole including #1 were very ugly. What a huge mistake it is to block that rear water connection off, it looks like it made it very very difficult for the coolant to circulate at all when you do that.