Looking good mate be carefull with that Toyo sports decat mine warped on flange to the turbo ended up changing it for a japspeed one that had been braced. Glad you have the bung now and no worries anything to help out a fellow starleter
Black and brown I don't use and blue is connected to something that has 2 vac lines going to it I'm only useing it's at it messed around with my boost gauge when I took it off