Airaid 400-258 User Manual
Page 2
18.
Double check your work!
Make sure there is no foreign material in the
intake path. Make sure all clamps, hoses, bolts,
connectors, and screws are tight.
Reconnect the negative battery cable!
Airaid Filter Co. 2688 E Rose Garden Ln. Phoenix AZ 85050 (800) 498-6951
REV.10.24.13
P/N 790-551 Aerosol Spray
P/N 790-550 Squeeze Spray
Thank you for purchasing the Airaid Intake System. Contact Airaid @ (800) 498-6951 8:00 AM - 5:00 PM MST weekdays for questions regarding fit or instructions
that are not clear to you. Your Airaid Intake System was carefully inspected and packaged. Check that no parts are missing, or were damaged during shipping. If any parts are
missing, contact Airaid. The air filter element is protected from direct exposure to water and debris; care should be taken not to drive through deep water. WATER INGESTION
IS THE DRIVERS RESPONSIBILTY! The air filter is reusable and should be cleaned periodically.
11. Install the hump hose (#7) onto the MAF sensor
housing as shown using two #60 hose clamps (#21).
Tighten only the clamp on the MAF sensor housing at
this time.
10. Install the CAD assembly into the vehicle using two
1/4-20x7/8” bolts (#15), four 1/4” flat washers (#16),
one MAF backing plate (#19), and two 1/4” nylock nuts
(#17). Leave the two bolts slightly loose for now for
final adjustment. Refer to the line drawing on page 1 for
reference. Next, reinstall the 6mm bolt thru the CAD,
radiator overflow tank, and into the fender well. Recon-
nect the MAF sensor wiring harness.
MAF Harness
6mm Bolt
12. Install the small end of the reducing hump hose (#8)
onto the throttlebody and tighten the #52 hose clamp
(#20). Next, install the remaining #60 hose clamp (#21)
on the large end of the hump hose leaving it loose for
now.
14. Install the Airaid Intake Tube into the hump hose on
the MAF, and then into the hump hose on the throttle-
body. Adjust for fit, and then tighten the hose clamps.
Connect the 5/8”x18” crank case breather hose (#9) be-
tween the valve cover and the intake tube as shown us-
ing two #19 speed clamps (#22). Now carefully reinstall
the intake air temperature sensor into the grommet from
step #13. Now that everything is in place, tighten the
three bolts that secure the CAD to the vehicle. 5.4L en-
gines: Measure, and then cut the 3/4”x12” L-hose (#10)
and use it to re connect the idle air bypass line to the
Airaid intake tube using two #22 speed clamps (#23).
13. Install the supplied rubber grommet (#24) into the
Airaid Intake Tube (#2) as shown.
Grommet
16. Reinstall the beauty cover using the 3 factory bolts.
Install the Airaid Premium Filter (#1) as shown, and
tighten the hose clamp.
If your vehicle does not have a hood mat, skip to Step
#17.
Install the weatherstrip (#11) onto the top of the CAD as
shown.
17. If your vehicle does not have a hood mat install the
optional CAD height extender (#5) using five 6-32
screws (#12), flat washers (#13), and kep nuts (#14) as
shown. Install the weatherstrip (#11) onto the top of the
CAD as shown.
15. 4.6L engines: The idle air bypass line goes
directly to the throttle body. Rotate the resona-
tor box 90 degrees to provide clearance for the 3/4
x 12” L-hose (#7). Install the 3/4”x12” L-hose
(#10) onto the Airaid Intake tube and the resonator
box and secure it using the two #22 speed clamps
(#23).
#9
#10
Idle air bypass hose
Crank case breather
Full color instructions can be viewed on our web site at Airaid.com. Use the Product Search function to find your part number, and click View Details.
FILTER IDENTIFICATION
700-420 Airaid Oiled Media 701-420 Airaid SynthaMax Dry Media - Red
702-420 Airaid SynthaMax Dry Media - Black 703-420 Airaid SynthaMax Dry Media - Blue
For your Oiled media filter we suggest
using the AIRAID Filter Tune-Up Kit!
Synthamax Air Filters do not require oil.
Service air filter as needed by cleaning with
common non-petroleum all-purpose house-
hold cleaner and water. Simple Green®,
Formula 409® or equivalent works great.
Apply cleaner to outside of air filter and al-
low to soak. Then flush filter clean from the
inside out with a garden hose and repeat
steps if necessary. Do not apply high pres-
sure water or air to clean filter. Allow filter
to air dry and reinstall
.