OK, I'm confused, cuz my STD. civic head on my D15B1 has the hole in the exact same spot, and it's not hooked up to anything either. It was just a blocked hole with carbon deposits on the back of the head. I'll be slashing tires if that punk sold me a bunk head... (I'd tear off the body kits, but that's just lazy, zip ties are no fun to cut, lol)
Let me know...
Jung