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High Flow Air Box- Focus ST 2013-2018
High Flow Air Box- Focus ST 2013-2018


 
Price:$159.00


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Product Code: 2363-AB-AA
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High Flow Air Box - Focus ST 2013-2018

Also fits :
Focus RS

Upgrade your air intake on your Focus ST with the Focus RS high flow air box. A direct replacement for the ST air box, the open top design allows for more air and high flow rates. Includes a mountune high flow air filter for even greater performance and value. Easy installation and enhanced looks.

  • Factory fit, Easy installation
  • Includes mountune high flow air filter
  • Increased performance


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mountune Full High Flow Intake, Focus ST
Sale price:$429.00

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mountune Full High Flow Intake, Focus ST

Average Rating: 4.5 of 5 Total Reviews: 9 Write a review »

  0 of 1 people found the following review helpful:
 
Ford quality is OK but not as good as Mountune June 12, 2018
Reviewer: Anonymous Person from Arroyo Grande, CA United States  
Firs of all, I have been buying parts from Mountune for  5 years.  Their service and their own parts are great.  Parts like this, that ford made, just so so  quality.  It will take another week or two of modifications to the air box for it to look the way it should have before I install.

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  0 of 0 people found the following review helpful:
 
Great Sound and Great Look May 30, 2018
Reviewer: Caleb Deslich from Columbus, OH United States  
Great product and built very well. I love the intake noise so much

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  1 of 1 people found the following review helpful:
 
Great products and pricing April 10, 2018
Reviewer: Matt F from Milford, MI United States  
I'm happy to write that I had good experience ordering through Mountune recently, but I'm a little disappointed that it took 10 days to get my order ready for delivery.   I didn't pay for overnight delivery but I would expect that the order be ready for delivery within 48 hours of purchase.  I'll continue to do business with Mountune b/c they have quality products, but I would like to see them step up their game in the shipping department.

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  0 of 0 people found the following review helpful:
 
March 17, 2018
Reviewer: Frank Pensiero from Harrisburg, PA United States  


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  1 of 1 people found the following review helpful:
 
RS High Flow Air Box for ST March 12, 2018
Reviewer: Sean Henderson from Harrisonburg, VA United States  
The RS Air Box with the upgraded filter set up does make a darn noticeable improvement in power... more than I expected. Also, if you roll into the throttle you can hear some induction noise and sometimes hear the blow-off valve release if you are paying attention. Nice low level sounds that are not intrusive as opposed to that Sound Imposer thing Ford did. Looking at the Sound Imposer hardware I removed when I did the RS Air Box I know darn well the RS Air Box would have cost Ford less money, plus it sounds better, and provided real horsepower and fuel mileage gains.

I also found out that at least in my new 2017 Focus ST, there is also no snorkel tube present to restrict airflow. The intake tubes from the Air Box that go to the common collector to the front of the grill are open beyond that point so there is plenty of cold air coming in there, plus the air flow from around the driver side headlight.  


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