Lingenfelter L650400493 Lingenfelter F-Body SuperTube Air Intake 1993 v4.2 - Manual (Page 3)

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• Remove the air intake from the ribbed rubber intake elbow (leave the elbow mounted to the ve-
hicle).
• In the space below where the stock air filter box was mounted, you will see a small black plastic
hollow air intake box that fed air to the air filter assembly. On Firebirds, the headlamp door module
is the device with wires leading to it that is mounted to this hollow air intake.
• The hollow box is secured to the vehicle by a plastic fastener. To remove the box, pry it out by slip-
ping a blade screwdriver underneath it (between the box and the metal of the vehicle, not under the
plastic fastener).
• On Firebirds, the headlight control module is attached to the hollow air box you have just removed.
It is secured by two plastic fasteners with Phillips head screws in them. Remove these two fasteners
by pushing up on the fastener to start the threads and then unscrew the screw, or pry the fastener out
with a screwdriver. Later, you will secure the module down with the hook and loop tape provided.
• You will be installing the air filter from under the car (you should not have to raise the vehicle). To
do so you will need to remove some fasteners that secure the plastic under-tray to the front, left cor-
ner of the vehicle (under where the air filter assembly was and under where the left side headlight is
located). First remove the last two bolts that secure the lower air deflector to the body (remove the
far left two bolts). The bolts have 8 mm heads and are mounted perpendicular to the ground (not the
ones mounted at an angle to the ground).
• Now you need to remove the seven remaining bolts that secure this front, left panel. These bolts
have 10 mm heads and are also mounted perpendicular to the ground. You do not need to remove
the plastic shroud - just remove the bolts that support it.
• Remove the air filter from the packaging. The filter is pre-oiled and is ready to install in the vehicle.
Remove the worm-gear clamp from the filter intake (and save to reinstall later).
• You should now be able to pull down on the far left hand corner of the plastic panel (the edge clos-
est to the tire) and slip the air filter into the space. The 4" circular inlet of the filter should fit up
through the existing hole in the body and be visible from inside the engine compartment. You may
now replace all of the bolts that secured the plastic under-tray.
• Place the plastic block-off plate over the air filter and slip the far corner under the wiring harness.
The smooth side of the block-off plate should be facing up (textured side should not be visible).
The plastic block-off plate should rest flush against the body of the vehicle. The air filter neck
should stick up through the block-off plate. Put the worm-gear clamp back onto the air filter - posi-
tioning the gear mechanism on the side of the filter closest to the front of the car.
• Place a thin film of WD40 on the inside of the air filter neck. Test fit the LPE air intake in the air
filter to make sure the block-off plate is positioned correctly - lining up the mounting hole on the
mounting tab of the intake with the mounting hole on the radiator shroud. Make sure the LPE air
intake is pushed down into the air filter. You may need to push from underneath the car or have
someone help you. Once you are sure the system is properly located and that the hood will close
properly, use the existing holes in the plate as a guide to mark the hole locations with a scribe or
pen. Now remove the LPE air intake and drill holes in the metal of the vehicle. When drilling, be
careful that you do not drill into any sensors or harnesses. Secure the plastic block-off plate to the
car using the included plastic fasteners.
• NOTE - in some case, especially on Camaros, the LPE air intake may touch the sound deadening
material found on the underside of the hood - this is normal. If the intake is properly located and
positioned in the filter, your hood should close properly.