WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Removing/Installing Intake Manifold Plenum With Torque Specification - 3.0L Engine (1 Of 2)
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Fig 2: Removing/Installing Intake Manifold Plenum With Torque Specification - 3.0L Engine (2 Of 2)