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 new O-rings.
Tightening torque:
8 N.m (0.8 kgf-m, 5.9 ft-lb)
Fig 1: Identifying Throttle Body To Intake Manifold