Airaid 250-255 Installation Instructions

Installation Instructions

For Part Numbers:

250-255 700-495 Airaid Oiled Media Filter
251-255 701-495 SynthaMax Dry Media Filter - Red
252-255 702-495 SynthaMax Dry Media Filter - Black
253-255 703-495 SynthaMax Dry Media Filter - Blue

2009-11 Cadillac CTS 3.0L V6

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

8. Silicone Reducer Coupler 1

9. Silicone Hump Hose 1

10. Filter Adapter 1

11. Weather Strip 9 3/4” 1

12. 1/2” x 26” Breather Hose 1

13. 6-32 x 5/16” Phillips Head Screw 8

14. 6-32 Kep Nut 8

15. #6 Flat Washer 8

16. 8-32 x 5/8” Button Head Screw 2

17. #8 Split Lock Washer 2

18. ¼-20 x ½” Button Head Screw 5

19. 1/4-20 x 3/4” Hex Bolt 1

20. ¼” Flat Washer 5

21. 1/4-20 Serrated Nut 1

22. 1/4-20 x 1/2” Phillips Screw (Black) 4

23. 5/16-18 x 3/4” Hex Bolt 1

24. 5/16” Flat Washer 1

25. 5/8” Well Nut 1

26. #64 Hose Clamp 3

27. #48 Hose Clamp 1

28. Bracket 1

29. Rubber Edge Trim 8” 1

30. 5/8” Hose Fir Tree Anchor 2

31. Edge Clip Cable Tie 2

32. 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

B

C

A

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.

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 and
MAP sensors.

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

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.

# 4

6-32 Screws
and Washers

# 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 (#25) to the vertical MAF
Panel tab as shown using the 5/16 Hex Bolt (#23) and
the 5/16” flat washer ( #24).

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

B

A

9A) Install the Filter Adapter onto the MAF panel using
three 1/4-20 Button Head screws (#18) and 1/4” Flat
washers (#17). B) Attach the Weather Strip (# 11) to the
curved edge of the MAF Panel. C) Insert the 5/8” hose
anchors (#30) into the two horizontal tab holes on the
MAF panel.

B

10. Transfer the air sensors from the Factory air box lid
into the Airaid intake tube(#2). Do not use factory
hardware! Secure the MAF sensor using the two #8-

32x 1/2 screws (#16) and Lock Washers (#17), and the
MAP sensor with the 1/4-20x3/4 bolt (#19).Install the
Reducer Coupler and one #64 clamp(#26) and the #48
(#27) clamp on the 90 deg bend of the Intake Tube.
Install the Hump Hose (#9) and 2 #64 clamps(#26) on
the opposite end of the Intake Tube.

Do not install bolt in bracket un­til step 16.

MAF and MAP

13. Install the Airaid Intake Tube assembly onto the

filter adapter first, and then onto the throttle body. Ad­just for fit, and tighten all the hose clamps. Next, recon­nect the MAF and MAP sensors.

11. Install the Bracket (#28) on to the Rear Panel (#3) as
shown using one 1/4-20 Button Head Screw (#17), 1/4”
Flat Washer (#20), and 1/4” Serrated Nut(#21). Com­plete the assembly by attaching the Airaid Premium Fil­ter (#1) to the Filter Adapter (#10).

Do not install bolt in bracket un-

A

til step 16.

C

B

14. A) Replace the factory breather line on the valve

cover with the 26” Airaid Breather Hose(#12). B) Se­cure the breather hose to the intake tube nipple using the
black Speed Clamp (#32).C) Slide the Edge Clip Cable
Ties (#31) 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.

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.

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 from step 5. B) Secure the assembly
by using the 1/4-20x 3/4 Bolt(#19).

Weather strip

15. A) Install the 11” Weather Strip (#11) 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.(#22). B) Line up the intake bracket with the
fender bolt hole, and secure the assembly using the fac­tory bolt. Reinstall the Factory engine and shock tower
covers .Note: These steps must be performed in order

to avoid difficulty with bolt hole alignment.

Reconnect the negative battery cable.

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

700-495 Airaid Oiled Media 701-495 Airaid SynthaMax Dry Media - Red

702-495 Airaid SynthaMax Dry Media - Black 703-495 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

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

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