[BYprodriver]

Originally Posted by Rapewta

I didn't use any. A razor thin gasket that the thermostat shared if I remember correctly.
20K + so far and no leaks.
I agree about changing the WP. First time for me on a 996 and someone told me to take it out through the top. No way. I should have read more opinions. Anyway it dropped through the bottom and took me hours to replace it with a NAPA rebuilt.

Aluminum ? how much $ ?