Airaid 400-299 Installation Instructions

Installation Instructions

For Part Numbers:

400-299 720-478 Airaid Oiled Media Filter
401-299 721-478 SynthaMax Dry Media Filter - Red
402-299 722-478 SynthaMax Dry Media Filter - Black
403-299 723-478 SynthaMax Dry Media Filter - Blue

2011-14 Ford F-150 5.0L V8

Component Identification

1. Airaid Premium Filter 1

2. Air Meter Tube 1

3. Airaid Intake Tube 1

4. Front Panel 1

5. Rear Panel 1

6. Hump Hose 1

7. Silicone Reducer 1

8. 22” Weather strip 1

9. ¼-20 x ½” Button Head Bolt 2

10. 1/4” Flat Washer 2

11. #8-32 x ½”Button Head Screw 2

12. #6-32 x 5/16 Pan Head Screw 4

13. #6 Flat Washer 4

14. #6-32Kep Nut 4

15. #56 Hose Clamp 1

16. #60 Hose Clamp 2

17. #64 Hose Clamp 1

18. Grommet 1

19. PCV Fitting 1

20. ¼ NPT to 3/8” Hose Fitting 1

21. T-20 Torx Bit 1

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.

A

A

B

B

1. Disconnect the negative battery cable!
A. Disconnect the two breather lines in the factory in-

take tube .
B. Loosen the two intake clamps, and remove the facto­ry intake tube.

2. A.) Disconnect the Mass Air Flow (MAF) Sensor.

B.) Unfasten the three clips on the left side of the facto-

ry airbox, and remove the upper half of the factory air­box.

3. Remove the factory air filter from the lower half of
the airbox.

Note: Tab is outside

4. Assemble the two Quick Fit Panels (#4 & #5) as

shown using four 6-32 screws (#12), flat washers
(#13), and Kep Nuts (#14). The panel tabs are to be on
the outside of the assembly.

7. Install the assembly onto the lower half of the facto­ry airbox. Slide the metal tabs into the airbox slots, and
fasten the 3 airbox clips

5. Install the Air Meter Tube (#2) onto the Panel As­sembly and secure using the two 1/4-20 Button Head
Bolts (9), and 1/4” Flat Washers (#10).

B

A

8. A.) Insert the 5/8” Grommet (#18) into the Intake

tube as shown. Complete the tube assembly by insert­ing the 5/8 PCV Fitting (#16) into the Grommet.
B.) Install the 3/8 “ Hose Fitting (#20) into the thread­ed holt in the Intake Tube.

6. Transfer the MAF sensor into the Airaid Intake Tube
and secure using two 8-32 x 1/2” button head screws
(#10). Do Not Use The Factory Torx Head Screws.

9. Install the Silicone Reducer (#7) and Hose clamps
onto the Airaid Intake Tube (#2). Place the #56 clamp
(#15) on the Throttle body side of the reducer, and the
#64 clamp (#17) on to the tube side.

10. Install the hump hose (#6) and two #60 hose clamps
(#16) onto the filter Air Meter Tube as shown. Leave
the two hose clamps loose for now

11. Install the Intake Tube onto the throttle body first,
then into the Hump Hose. Tighten all of the hose
clamps.

12. Reconnect the breather lines to the Airaid Intake
Tube.

15. Double check your work!

Make sure there is no foreign material in the
intake path. Make sure all clamps, hoses,
bolts, and screws are tight.
Make sure all clamps, hoses, bolts, and screws
are tight. Periodically check the tightness of
all hose clamps.

16. Re-connect the negative battery
cable!

13. Reconnect the Mass Air Flow meter.

14. Install the Weather Strip (#8) onto the panel assem-

bly with the contoured edge rolling away from the filter
area. Start at the front of the vehicle and work your
way back. Complete the installation by sliding the
Airaid Premium Filter (#1) onto the Air Meter Tube
and tightening the clamp.

Thank you for purchasing the Airaid Intake System. Contact Airaid @ [phone] 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 RESPONSIBILITY! The air filter
is reusable and should be cleaned periodically.

FILTER IDENTIFICATION

720-478 Airaid Oiled Media 721-478 Airaid SynthaMax Dry Media - Red

722-478 Airaid SynthaMax Dry Media - Black 723-478 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 house­hold cleaner and water. Simple Green®,
Formula 409® or equivalent works great.
Apply cleaner to outside of air filter and
allow to soak. Then flush filter clean from
the inside out with a garden hose and re­peat steps if necessary. Do not apply high
pressure water or air to clean filter. Allow
filter to air dry and reinstall.

P/N 790-551 Aerosol Spray
P/N 790-550 Squeeze Spray

Airaid Filter Co. 2688 E Rose Garden Ln. Phoenix AZ 85050 [phone] [e-mail] www.airaid.com

REV.04.01.14