Lingenfelter L650030504 Lingenfelter 2004 GTO Airbox Instructions v3.1 - Manual (Page 7)

Page 6 of 9
Install the included hose on the end of the tube that is
bolted to the box. Then install two of the smaller hose
clamps to this hose, in order to mount the hose to the
airbox tube and the Mass Air Flow sensor.
Now, install the black plastic push-in fastener to secure
the bottom. (This should line up with an existing hole
in the body.) Using the hole in the top of the air box,
zip-tie to the aluminum A/C tube, forward of the service
port. (See picture).
After the front section is in position, work the rear down
onto the fenderwell and slide the “L” bracket over the
stud. Adjust the bottom seal so that the edge of the box
is pushing on the center of the seal at all contact points.
Install the M6 flange nut on the stud to secure the top
section of the box.
The hose that is routed above where the air filter is
going to be placed is going to get a section of wire loom
in order to protect it from damage. This hose is then
placed in the notches that have been cut in the air dam
wall as shown as the picture.