This should be done by a trained professional. Meaning: It is very easy to make simple mistakes that are very expensive to "unmake".
Disconnect the battery.
Remove the cross car brace.
Remove the fuel injector sight shield.
Remove the PCV dirty air tube from the camshaft cover.
Remove the PCV fresh air tube.
Remove the sight shield bracket nuts.
Remove the sight shield bracket.
Disconnect the left side fuel injector electrical connectors from the fuel injectors.
Disconnect the right side fuel injector electrical connectors from the fuel injectors.
Disconnect the evaporative emissions purge valve line and electrical connector.
Remove the EVAP line from the retaining feature at the rear of the right head. Position the line aside.
Relieve the fuel system pressure.
Disconnect the fuel line from the fuel rail.
Remove the fuel line from the retainer at the rear of the right head.
Remove the fasteners attaching the fuel rail to the intake manifold.
Lift the entire fuel rail and injector assembly from the intake manifold.
Loosen the plenum duct clamp at the front of the intake manifold.
Loosen the bolts attaching the intake manifold to the cylinder heads.
Remove the intake manifold by using an upward lifting motion at the rear of the manifold assembly.