Parts List

COBB carbon fiber intake tube
COBB carbon fiber intake airbox lid
3" 45-degree degree silicone elbow (to airbox)
3" - 2.5" silicone reducer (to turbo)
Turbo Inlet Hose
791101 Ford Focus High Flow Filter
1/2" Aluminum Spacer
(3) #48 Hose Clamps Black Stainless
(1) #40 Hose Clamps Black Stainless
Airbox lid rubber seal
Intake tube rubber grommet w/ metal insert
6mm x 25mm flanged hex bolt

792150 - Focus ST Cold Air Intake

Focus ST 2013-2018

Parts List

Focus ST Intake Tube
3" 60-degree silicone hose
2.5" - 3" Reducer
791101 Ford Focus High Flow Filter
8mm Grommet
1/2" Aluminum Spacer
(3) #48 Hose Clamps
(1) #40 Hose Clamps
M6 x1.0 x 25 Stainless Flange Bolt

Congratulations on your purchase of the COBB Tuning Focus RS Carbon Fiber Intake System! 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.

Tools Needed

Torx T27 screwdriver
Flathead screwdriver
Phillips head screwdriver
3/8" ratchet
3/8" 7mm socket
3/8" 8mm socket
3/8" 10mm socket
3/8" 12mm socket
3/8" 6" extension

Remove the Stock Intake System

Remove the plastic engine cover by gently pulling up. It is merely held down by pressure clips.
Remove (2) Torx bolts securing down the front of the front windshield cowl using a Torx bit. There will be a bolt on the driver's side and on the passenger's side of the engine bay.
Remove (4) pressure clips securing the front windshield cowl using a flathead screwdriver.
Gently pull up and release the (2) debris covers on the front windshield cowl. There will be one on the driver's side and one on the passenger's side.
Remove the (2) ?mm bots securing the the debris/water guard under the front windshield cowl. There will be one on the driver's side and one on the passenger's side.
Gently lift up the front of the front windshield cowl and remove the debris/water guard.
Loosen the (2) hose clamps connecting the two sides of the intake pipe using an 7mm socket.
Loosen the single hose clamp securing the intake pipe to the airbox using an 7mm socket.
Loosen the single hose clamp securing the intake pipe to the turbo using an ?mm socket.
Remove the rubber grommet from the mounting location securing the electrical harness to the intake pipe.
Disconnect the PCV plug from the back of the intake pipe. You may need to gently lift up the the front windshield cowl to gain access to the plug.
Gently lift and remove the stock intake system from the car. Be wary of any electrical cables or vacuum hoses that may be in the engine bay as you're removing the piping.
Using a Phillips head screwdriver, remove the (4) screws securing the intake airbox lid.
Remove the stock intake filter.

Install the COBB Carbon Fiber Intake System

Insert the new COBB reusable air filter into the airbox. Be certain that the lib of the filter is behind the lip of the airbox.
Aluminum Intake installers can reinstall the factory airbox lid.
Carbon Intake Only
1. Install the provided silicone trim along the grooves on the top fo the COBB airbox lid.
2. Gently place the new carbon fiber airbox lid on the airbox and secure it with the (4) OEM screws.
Place a small amount of painters tape or similar product to the underside of the front windshield cowl cover to prevent scratching the new carbon fiber intake tube as you install it.
The installed intake pipe will be connected as such:

There are two different reducers included with the carbon intake. The shorter one will be used if installing the intake onto a Focus RS and the long one will be used for the Focus ST. If you're installing the aluminum intake you will only have one coupler for your focus ST since the intake doesn't fit the Focus RS
At this time go ahead and install the adapter for the PCV hose if running the traditional intake.
Install the supplied rubber grommet and metal bushing onto the COBB carbon fiber intake pipe.
Connect one end of the assembled intake tube on the turbo inlet, and connect the other end to the intake airbox.
Attach the intake tube bracket to the engine using the supplied 6mm x 25mm flanged hex bolt.
Install the PCV connection on the rear of the intake tube.
Tighten the clamps securing the silicone on the intake tube.
Reinstall the OEM engine lid cover support.
Insert the lower cowl debris guard.
Secure the lower cowl debris guard on the driver's side with the OEM bolt.
Secure the lower cowl debris guard on the passenger's side with the OEM bolt.
Reinstall the passenger's side upper cowl debris guard by pressing it on until you hear it click.
Reinstall the driver's side upper cowl debris guard by pressing it on until you hear it click.
Secure the upper and lower cowl portions on the passenger's side with the OEM bolt.
Secure the upper and lower cowl portions on the driver's side with the OEM bolt.
Finish securing the upper cowl by reinstalling the (4) OEM push pins along the forward edge.
Reinstall the engine cover by merely applying downward pressure from the top.