Airaid 250-252 Installation Instructions

Installation Instructions

For Part Numbers:

250-252 700-452 Airaid Oiled Media Filter
251-252 701-452 SynthaMax Dry Media Filter - Red
252-252 702-452 SynthaMax Dry Media Filter - Black
253-252 703-452 SynthaMax Dry Media Filter - Blue

2008-11 Cadillac CTS 3.6L V6 All models

Component Identification

1. Airaid Premium Filter 1

2. Airaid Intake Tube 1

3. MAF Panel 1

4. Rear Panel 1

5. Adapter Panel 1

6. Top Cover 1

7. OEM Cover Bracket 1

8. Silicone Reducer Coupler 1

9. Silicone Hump Hose 1

10. Weather Strip 9 3/4” 1

11. 1/2”x 26”Breather Hose 1

12. 6-32 x 5/16” Phillips Head Screw 8

13. 6-32 Kep Nut 8

14. #6 Flat Washer 8

15. 1/4-20 x 1/2” Button Head Screw 4

16. ¼” Flat Washer 2

17. 1/4-20 Serrated Nut 3

18. 1/4-20x1/2” Phillips Head Screw 4

19. 5/16-18 x 3/4” Hex Bolt 1

20. 5/16” Flat Washer 1

21. 5/8” Well Nut 1

22. #64 Hose Clamp 2

23. #52 Hose Clamp 1

24. #48 Hose Clamp 1

25. Bracket 1

26. Rubber Edge Trim 8” 1

27. 5/8” Hose Fir Tree Anchor 2

28. Edge Clip Cable Tie 2

29. Black Speed Clamp 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

C

Coolant Line

3. A) Remove the factory fender bolt securing the air

box assembly. Next pull out the coolant line from atop
the air box lid and gently rotate the air box assembly
towards the front of the vehicle. The air box assembly is
now free and should be removed from vehicle.

# 5

1. Disconnect the negative battery cable.

Remove the engine and shock tower covers, if so
equipped, by simply pulling up on them, and sliding out
from the vehicle. These will be reused later in step 16

B

A

2. A) Loosen the hose clamps on the factory intake tube.
B) Disconnect the breather line and remove the factory
intake tube . C) Disconnect the Mass Air Flow sensor.

4. Use caution not to loose the factory core support

grommet while removing the air box assembly. It will be
needed in step 13.

.

5. Locate the pre existing hole in the chassis and tap it
for a 1/4-20 bolt. Use a 1/4-20 NC tap with anti-seize
lube or equivalent, and follow the 1/4 turn forward, 1/2
turn back rule. This will ensure that clean threads will be
cut into the hardened steel. NOTE: If your vehicle has
a grounding cable bolted to the chassis in this location,
you are omit this step.

# 4

# 3

6. Install the Adapter Panel (#5) to the MAF Panel (#3)
as shown using four 6-32 screws (#12), 6-32 Kep nuts,
and #6 flat washers (#14). Attach the Rear Panel (#4) to
the MAF Panel using two 6-32 screws.

C

7. Attach the OEM Cover Bracket (#7) to the Rear Panel
a shown using the remaining two sets of 6-32 hardware

8. Attach the 5/8” Well Nut (#22) to the vertical MAF
Panel tab as shown using the 5/16 Hex Bolt (#20) and
the 5/16” flat washer ( #21).

Refer to the Exploded View Drawing for additional
information on part locations and orientations.

B

A

9. A) Transfer the Mass Air Flow Sensor from the facto­ry airbox to the Adapter Panel and secure using two 1/4­20 button Head Screws (#15) and Serrated Nuts (#17).
Note: The factory airbox seal on the Mass Air Flow Me­ter is not to be used in this kit. B) Attach the Weather
Strip (# 11) to the curved edge of the MAF Panel. C)
Insert the 5/8” hose anchors (#28) into the two horizon­tal tab holes on the MAF panel.

B

A

B

10. Install the Reducer Coupler (#8)onto the 90 deg.

Bend of the Airaid Intake Tube (#2) and place and the
Hump Hose on the opposite end as shown. Secure the
couplers to the Intake Tube using the two #64 clamps
(#22). Place the #48 clamp(#24) on the reducing coupler
and the remaining #52 clamp(#23) on the Hump Hose.

A

11. A) Install the Bracket (#25) on to the Rear Panel

(#4) as shown using one 1/4-20 Button Head Screw
(#15), 1/4” Flat Washer (#16), and 1/4” Serrated Nut
(#17).B) Complete the assembly by attaching the Airaid
Premium Filter (#1) to the Mass Air Flow Sensor.

C

B

A

12. A) Lower the Airaid Performance Air box assembly

into the engine cavity . Insert the Well Nut into the Fac­tory core support grommet and rotate the assembly rear­ward until the bracket rests on the shock tower and the
MAF panel’s lower tab hole is lined up with the Tapped
Chassis bolt hole. B) Secure the assembly by using the
1/4-20x 1/2 Bolt(#15). NOTE: If your vehicle did not
require cutting threads in step 5, and has a ground cable,
you will reuse the factory bolt. Remove the ground cable
bolt and slide the panel between the chassis and the
ground terminal. Re secure the entire assembly using the
factory supplied 6mm bolt.

13.A) Install the Airaid Intake Tube assembly onto the
Mass Air Flow Sensor first, and then onto the throttle
body. Adjust for fit, and tighten the hose clamps. B)
Replace the factory breather line on the valve cover with
the 26” Airaid Breather Hose(#11). Secure the breather
hose to the intake tube nipple using the black Speed
Clamp (#29)

14. A) Slide the Edge Clip Cable Ties (#30) about 6”
apart along the fender pinch weld and return the coolant
line to it’s original location. Secure the coolant line us­ing the cable ties and trim off excess. B) Install the 8”
Weather Strip (#26) onto the curved edge of the top cov­er (#6) and install the top cover onto the Airaid filter box
using the four 1/4-20 Black screws.(#21). C) Line up the
intake bracket with the fender bolt hole, and secure the
assembly using the factory bolt. Note: These steps must

be performed in order to avoid difficulty with bolt
hole alignment.

15. Reinstall the Factory engine and shock tower covers.

Reconnect the negative battery cable. 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. Double check the hood
clearance.

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 RESPONSIBILTY! The air filter is
reusable and should be cleaned periodically.

FILTER IDENTIFICATION

700-452 Airaid Oiled Media 701-452 Airaid SynthaMax Dry Media - Red

702-452 Airaid SynthaMax Dry Media - Blue 703-452 Airaid SynthaMax Dry Media - Blue

For your Oiled media filter

we suggest using the AIRAID

Filter Tune-Up Kit!

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

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.

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

REV.05.20.14