Lingenfelter L650060505 Lingenfelter Pontiac GTO Air Intake 2005-2006 v4.0b - Manual (Page 10)

Step 28 - Reinstall the valve cover breather tube to the
airtube.
Page 9 of 10
Step 29 - Install the plastic radiator cover, making sure
the coolant overflow hose is positioned as pictured,
running through the U-shaped edge of the airbox wall.
Step 30 - Double check the coolant overflow hose,
making sure that it moves freely and is not crimped.
Install the five factory push lock style fasteners to the
radiator cover.
Step 31 - Install the airbox seal on the top edge of the
airbox as shown.