Egr valve arrived. Found oem new for $109 shipped.
This stripped thread is turning into a bigger problem. After fighting with it I managed to get about 15 lbs of torque on it. If I put any more it will probably completely wipe the threads out. I can't feel or hear exhaust gas coming out of it, so it is more or less sealed up for now
What's a good permanent solution? Next bolt size up and rethread with tap?