I'm in the midst of installing a bunch of aftermarket parts onto my Outback XT that I have been collecting secondhand from wrecked cars and used parts. I went to install a Grimmspeed Electronic Boost Control solenoid that I had bought secondhand, but I couldn't figure out where it's supposed to go. According to the installation page, it's supposed to be a direct replacement for the Legacy GT (outback XT). However, I can't figure out where the stock boost controller is and where it plugs in.
Does anyone have any installation pictures or hints about what I should be replacing?