Airaid 福克斯 ST SynthaMax 空滤(Airaid 冷进气专用)


2013 and 2014 Focus ST Replacement SynthaMax Air Filter from Airaid for the Airaid Cold Air Dam Intake System.

This SynthaMax air filter from Airaid is a direct replacement for the original filter in Airaid's cold air dam intake systems (CAK145 or CAK144) for the 2013-2014 Focus ST. Replacing an Airaid air filter is simple, requiring only a few hand tools and can be accomplished in a matter of minutes.


  • Easy Oil-free Maintenance
  • 100 Percent Synthetic Material Construction
  • Washable and Reusable with Regular Household Detergents
  • Unrivaled Filtration Efficiency, 99+ Percent Efficiency Rating
  • Made in the USA!

The SynthaMax air filter is a non-oiled filter made up of an inner and outer layer. An outer layer of wire mesh provides durable support of filtration which helps prevent the air filter from collapsing under high air flow. The inner layer consists of two layers of synthetic materials that both provide outstanding air flow and high filtration. Particulates are first trapped in the outer layer of synthetic needle-felt polyester material which is designed for wet and dry filtration with high air flow capacity. The inner layer is a backup that captures any remaining particulates. Airaid SynthaMax air filters are made completely of synthetic fibers which are washable and do not need to be oiled making clean up easier.

Please Note: This air filter is not a replacement for the factory air box. It is only designed for use with Airaid's cold air dam intake systems.

*Will also fit any 2013-2014 non-turbo 2.0L Ford Focus that is equipped with Airaid's cold air dam intake system.

Are you looking to make some performance upgrades to your 2013-2014 Focus ST? If so, you might consider a new cold air dam intake system from Airaid! One of the selling points of the Airaid products is their high quality construction and ease of installation. Their intake products also work-they will significantly increase airflow, horsepower and torque, while also improving engine performance. Each Airaid product is tested on their in-house dynamometer, so you can be assured that the performance numbers come from real world testing and research.