WARNING: This page is about a different car, the 2008 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
Install in the reverse order of removal.
NOTE:
Use a new gasket.
Tightening torque:
8.3 N.m (0.85 kgf-m, 6.1 ft-lb)
Fig 1: Locating Tumble Generator Valve Assembly And Intake Manifold