How-To: Install COBB Tuning Intake on 2013 Ford Focus ST

You can purchase this Intake directly from us HERE

Here are some specs for you:

Mfgr. Warranty: 1 year
Filter Color: Blue
Filter Element Type: Wet
Filter Material: Cotton
Filter Reusable: Yes
Piping Color: Black
Piping Material: Aluminum
Tuning Required: No

And here’s what RallySport Direct has to say about it:

The COBB Intake for the Focus ST takes a great airbox design and makes it even better! They improved upon the factory airbox ram air ducting by including an oiled dual cone filter to increase airflow and to hear that great turbo sound. The constrained piping to the turbo is replaced with 3″ mandrel bent aluminum tubing to maximize air flow while custom silicone couplers ensure a perfect OEM-like fitment. The COBB Intake is the perfect first step towards Stage 2 power levels when paired with the COBB FMIC!

Tools needed:

Sockets: 9/32, 5/16, deep 12 mm
3/8 ratchet
¼ ratchet, with extensions

Next on the list for the White Sheep project car is a Cobb intake. We documented this install as best we could, our camera was dead so there won’t be a lot of pictures, but we’ll explain as we go.
First, here’s the stock intake. You can see it’s somewhat unsightly. So what we needed to do to get this off is take out the mount for the engine cover on the left in this picture, and the two other bolts pictured, it made it a lot easier to disassemble the intake to get it out so undo the hose clamps to get it to come apart.

We took the cam angle controller line off and moved it out of the way, the only thing you need to do to get it loose is pinch the two sides of it and it pulls right off. Then we pulled the cover off the intake box, exposing the stock filter element. It just pulls out of the airbox. There are 4 screws that hold the airbox together, two are pictured here, and two are slightly out of the shot. You will also need to take the sensor off the elbow going into the airbox. All of these screws are a simple 5/16. Next we pulled the hose clamps loose to make them all easier to pull off. There are two screws holding the elbow to the airbox, don’t forget to pull them loose prior to getting the elbow off the car.

Once we have all the stock intake stuff out of the way (there is a hose clamp that takes a 9/32 socket on the turbo inlet on the back of the engine, it was somewhat tricky to get to, but not so bad) we needed to start putting the Cobb parts in place. Here you can see we placed the intake hard pipe. It slipped right into place, the only trick we found that helped was putting the silicone coupler on the turbo inlet prior to putting the hard pipe in place. It would be a bit more difficult to do it after the fact. So, here’s a picture of the progress so far, looks good:

You can see in this image the mounting location for the bolt that they supply in the kit that comes with the intake. Don’t mount this quite yet, you’ll want to make sure you get everything in place and ready to go, then bolt it down. We show you in this picture the mounting locations for the air box, we found it much easier to get the coupler and the stock elbow mounted with the airbox out of the way. Just pull the rubber covers off of the front air inlets and give the airbox a little tug and it will come out. Place the coupler than came with the kit on the end of the hard pipe, slide the factory elbow on, put the airbox back in, get your angle right. Slide it into the airbox, replace the two screws that hold the elbow in the airbox, and fit the green filter on the end in the airbox. Now tighten that clamp down and replace the top of the airbox.

After all that, here’s what you’ll end up with. Looks clean, performs well, sounds great.

You can see then end of the filter is open, as opposed to the factory filter has a closed end. This makes the bypass valve much more noticeable. You can hear the turbo a lot more now.

Well, now that we finished that up, take the car out for a drive and flog it a few times and you will instantly know that you changed the intake. I mean the sound has improved 10 fold. As far as performance goes, I can’t really say if there is a noticeable gain in power since we haven’t had it on a dyno, but there is definitely more air going into the turbo. All in all, we are very happy with this install. It wasn’t terribly difficult to do, and it is fairly inexpensive. Thank you for taking the time to read our write up on the Cobb intake, we look forward to getting some more products installed and giving you our opinion on them all!

Corby Lines

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