Egr cooler leaking externally?

[Nilao]

I had an epiphany. Rather than pull the oil filter header off I plugged all the coolant ports and pressurized it to 20 psi. I found my leak. There is a pin hole in the aluminum itself. With no new plate available I'm left to my own devices to fix it. I'll see if any weld shops are open tomorrow and take it down there. If none are ill most likely try to braze it shut.