Intake Manifold

Tightening torque
1st 3.9-5.9Nm (0.4-0.6kgf.m, 2.9-4.3 lb-ft)
2nd 18.62-23.52Nm (1.9-2.4kgf.m, 13.74-17.36 lb-ft)
3rd Repeat 2nd step twice or more.

NOTE: Be careful of the installation direction.
a-h: 1st step order
1-8: 2nd step order