Congratulations on your purchase of the COBB Tuning Intake System for the Fiesta ST! The following instructions will assist you through the installation process. Please read them BEFORE beginning the install to familiarize yourself with the steps and tools needed. If you feel you cannot properly perform this installation, we HIGHLY recommend you take the vehicle to a qualified and experienced automotive technician.

Parts List

Intake Tube

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Velocity Stack

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Fiesta ST Filter

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Fiesta Airbox Lid

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Turbo Inlet Reducing Elbow

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Airbox To Intake Silicone

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Fiesta Airbox Gasket

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Intake Mounting Bracket

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Airbox Spacer

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Late-Model Vacuum Line & Loose Vacuum Line

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#44 Hose Clamp

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(2) #48 Hose Clamps

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#52 Clamp

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(2) m8x1.0 x 12mm Flange Head Bolt

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(4) m4x1.0 x 12mm Stainless Cap Bolt

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(2) m4x8mm Cap Bolt

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1/8 npt x 3/8 nylon Elbow

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M3 and M4 Hex Keys

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Tools Needed

Sockets

3/8"

• 3/8" ratchet

• 3/8" 12" extension

• 3/8" 6" extension

• 3/8" Socket Swivel

• 3/8" 7mm socket

• 3/8" 8mm socket 

• 3/8" 10mm socket

• 3/8" 12mm socket 

• 3/8" 15mm socket 

• 3/8" 15mm deep socket

• 3/8" T20 Torx Bit

• 3/8" T25 Torx Bit

• 3/8" T30 Torx Bit

• 3/8" 4mm Allen Socket

• 3/8" 5 mm Allen Socket

• 3/8" 10 mm Allen Socket

Hand Tools

• Phillips head screwdriver

• Flathead screwdriver

• 3mm Allen Key

• 7mm Nut Driver

• Trim removal tool

• Pick

• Needlenose pliers

• Channel Lock Pliers

• Deadblow Hammer

Removing Factory Intake

1. To start off, it’s best to go ahead and unplug the negative battery cable from the battery.  You will need a 10mm socket or wrench to do so.
   
   

   
   
   
   

2. Pull the engine cover off of the motor by pulling upward and away.  It’s held in place by three (3) grommets that will pop out with force.
   
   

3. Remove the two (2) rubber caps off of the base of the windshield wipers.  Use a 15mm socket to remove the nut holding each wiper to the vehicle.  Remove the wipers by wiggling them back and forth off of their spline.  This may require the use of a small bearing puller type tool.
   Pro Tip:  Use blue painters tape to mark where the wipers rest in a down position so that it’s easy to reinstall later.
   
   

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4. Using a small pick or a small flat-head screwdriver, pry off the six (6) clips that hold the two layers of cowl together and set them aside.  Remove the top cowl piece and set aside.
   
   

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5. Using a T30 Torx bit, remove the two (2) screws that hold each headlight on.  Use a flat-head screwdriver to remove the plastic fastener as well.  Starting at the back of the light, pull upward on the headlight until it pops free.  You may need to push the headlight toward the windshield to release the upper clip.  Unplug the plug on the back of the headlight and set it aside.  Remove both headlights.
   
   

   
   
   

6. With the headlights out of the way, use a 10mm socket, remove the two (2) fasteners on each end of the lower cowl section.  Once all four (4) fasteners are removed, use your fingers to pinch and remove the line in the center of the cowl and remove the cowl.
   
   

   
   
   

7. With the cowl finally out of the way, we can now remove the factory intake.  Use a 10mm socket to remove the nut holding down the intake to the valve cover.  Use a 12mm wrench to remove the plastic engine cover mount that is also holding the intake in place at the back of the motor.
   
   

   
   
   

8. Use a 7mm socket to loosen all three (3) of the worm clamps on the intake.  There is one behind the motor where the intake meets the turbo as well as one clamp where the two intake tubes meet and one clamp that secures the tube to the airbox.    
   
   

9. a) If you have a 2014-2015 MY use a pair of pliers to pull the Evap hose off of the valve cover.
   
   

   
   
   b) If you have a 2016-2019 MY, un-clip the Evap hose from the stock intake tube by squeezing the plastic ring and pulling away from the tube.  (Refer to picture on right)
   
   
       
   
   
   
   

10. a) If you have a 2014-2015 MY remove the tube at the start of the intake by disconnecting the connector with the green clip and pulling it away from the intake.  Pull back the red tab on the MAF sensor attached to the airbox and unplug the sensor.
    
    

    
    
    
    b) If you have a 2016-2019 MY remove the two (2) connectors with the green clips and pull back the red tab on the MAF sensor attached to the airbox and unplug the sensor.  With your hand, follow the hardline coming from the larger of the two connectors until you find the clip connecting the other end to the lower intercooler piping.  Unclip this and remove the entire stock hardline.  Remember where this connection is as you will need to connect the intake adapter to it later.
    
    
        
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11. With all the connections and clamps loose on the intake, break the two tubes apart and remove the intake from the car.
    
    

12. Using a T20 Torx bit, remove the four (4) screws holding the top of the airbox onto the lower part of the box.  Once removed, remove the MAF sensor from the box using a T20 Torx bit.
    
    

        
    
    
    
    

13. If you have plans to continue using the engine cover, re-install the engine cover mount that was previously holding down the intake.
    
    

14. (my17-19) Reach down and unclip this Evap hose.