Greg

Ya, Sorry, I dont know how to describe it but you have the "main" part of the T stat that controls the main flow , then theres that flat round (1 inch dia +-) thin "plate" that covers the bypass hole. Drill a small hole in that.

Subaru....Oh. my daughter wants one, although she loves her 240d a Sub would more fit her needs, I was crushed at first
but i got over it
Steve