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How to Install a C&L Cold Air Intake for 2011-2012 Mustang GT

This Mustang Parts Installation Guide Works For

C&L Cold Air Intake (11-13 GT)C&L Cold Air Intake (11-13 GT) 10699-11PI
Fitment Includes:
  • - GT 2011, 2012, 2013
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Tools Required

  • 10mm socket, socket wrench with extension, 13mm deep well socket, pliers or channel locks, socket driver for kit supplied T-20 torx bit, Phillips head screwdriver, and two flat head screwdriver.Fig.1
Installation Time: 1 Hr

Installation

Figure 1

  1. Remove the stock air filter assembly
  • Remove strut bar assembly using 13mm deep well socket and wrench for the four nuts holding it to the strut towers and life bar straight off.Fig. 2 (passenger tower nuts removed)

Guide 98421 Picture 02

Figure 2

  • Remove engine cover by lifting straight up on it by starting with one end (until it releases from the mount) and then moving back to the other end.
  • Cover is held down by rubber snaps with two on each side of the engine cover.

Fig. 3 (Cover removed driver’s side)

Guide 98421 Picture 03

Figure 3

  • Loosen the clamp that secures the stock inlet house to the throttle body using a medium flat head screwdriver.Fig.4 (Locations)

Guide 98421 Picture 04

Figure 4

  • Disconnect the vacuum house that goes from the valve cover just to the right of the throttle body.
  • Push on the small tab holding the fitting in place over the boss of the inlet pipe
  • Move this tab over with your thumb and pull connector away towards the driver’s compartment.Fig. 4.e.ii

Guide 98421 Picture 05

Figure 5

  • For automatic equipped vehicles there will be a smaller fitting next to the valve cover vent tube.

  • Remove from stock intake by pushing down on the yellow tab with your thumb while pulling towards the driver’s compartment.
  • Remove the noise transmission tube connector.
  • With channel locks or pliers, squeeze the two tabs of the spring loaded clamps together.
  • It will lock itself in the ‘open position’.Fig. 4.g.ii

Guide 98421 Picture 06

Figure 5

  • Pull away from the stock intake towards the driver’s compartment and disconnect fastener from the backside of the stock intake box.

  • Disconnect the MAF sensor located on the front of the air filter housing.

  • Slide the red tab on the bottom of the connector towards the front of the vehicle.Fig.5

Guide 98421 Picture 07

Figure 6


  • Remove stock air filter housing.
  • Remove the 10mm bolt from the air filter housing located between the driver’s side fender and air box.Fig. 6

Guide 98421 Picture 08

Figure 7

  • Pull out any press through nylon fasteners connecting to air filter housing.
  • Lift out the entire air filter assembly by lifting slightly upward and to the rear of the vehicle.
  • After removal you will be able to see the incoming fresh air feed that enters from between the headlight assembly and the radiator support.Fig. 7

Guide 98421 Picture 09

Figure 8

  • Remove factory MAF sensor for factory intake assembly
  • Using the supplied T-20 torx bit, remove the two screws that secure the factory air meter-sensing element from the stock air box assembly.Fig. 8

Guide 98421 Picture 10

Figure 9

  • Make sure the factory rubber seal comes out with the MAF sensor.

2. Install New C&L Intake Assembly

  • Carefully lower the sensor in the new aluminum MAF housing from the kit.Fig. 9

Guide 98421 Picture 11

Figure 10

  • The sensor will only bolt up one way, with the ‘flow’ arrow pointing towards the engine inlet pipe.

  • Install new filter shroud.

  • Lower the new shroud into the engine compartment with the lower ‘scoop’ portion of the shroud going down first, behind and under the rubber seal of the fresh air intake feed.Fig. 10

Guide 98421 Picture 12

Figure 11

  • Move the shroud as far forward as you can under the fresh air feed.
  • Locate the 10mm bolt hole from the stock air filter assembly and line up the shroud mounting hole with this hole and reinstall factory 10mm bolt.Fig. 11

Guide 98421 Picture 13

Figure 12

  • OPTIONAL – Drill a small diameter hole in the bottom of the rubber section of the fresh air feed in a location that lines up with the hole on the bottom of the new shroud and use the kit supplied bolt and nut to mount.

  • Air Filter Fittings

  • For Manual transmission – Use the nylon plug and insert and tighten into the hole between the valve cover tube and noise transmission tube.

  • For Automatic transmission – Use the barbed nipple fitting and insert and tighten into the hole between the valve cover tube and the noise transmission tube.

  • The fittings are tapered and will self seal by using a wrench.Fig. 12

Guide 98421 Picture 14

Figure 13

  • Install the new intake assembly

  • Lower assembly into the engine compartment and slide the silicone hose over the throttle body and tighten the clamp that goes over the throttle body flange.Fig. 13

Guide 98421 Picture 15

Figure 14

Connect the stock MAF sensor wiring to the MAF sensor mounted on the new air filter assembly.Fig. 14

Guide 98421 Picture 16

Figure 15

Slide the kit supplied filter over the neck of the new MAF body and orient the clamp so that you can tighten it with a screwdriver.Fig. 15 (Isn’t it massive!)

Guide 98421 Picture 17

Figure 16

Reconnect the valve cover vent tube fitting to the new inlet tube. It should click into place.

Slide the noise transmission tube all the way over the new mount and release the spring clamp.

TRICK – Take two flat head screwdrivers and release the clamp by applying slight pressure in opposite directions.Fig. 16

Guide 98421 Picture 18

Figure 17

  • For automatic transmission equipped vehicles reuse the original molded rubber hose to reattached to new fitting.'

  • Pull back the plastic conduit and cut the hose just aft of the factory nylon release fitting The exposed 3/8” tubing will then slide over the barded nipple fitting that you previously installed.
  • Tighten all clamps once you are satisfied with the alignment of the entire assembly.
  • Reinstall the factory engine cover and strut tower brace.
  • Lineup the factory engine cover over the rubber mounts and ‘pop’ back on.
  • Align strut tower brace over tower studs and mount using the factory 13mm nuts.Fig. 17

Guide 98421 Picture 19

Enjoy!