AMS 2016+ Focus RS High Flow Air Filter


Simply dropping this filter into your car’s stock air box alone picks up 10whp at 5500 RPM!

SKU: AMS.20.08.0001-1 Category:


Introducing the AMS Focus RS High Flow Air Filter

The new AMS Ford Focus RS High-Flow Air Filter is exactly what your hot hatch needs to breathe deep and produce big power! Simply dropping this filter into your car’s stock air box alone picks up 10whp at 5500 RPM! The engineering behind our filters is what sets them apart from the big name brand competition.

No Messy Cleaning Process

Our AMS Filters are made with materials specifically designed for automotive applications, a synthetic non-woven multi-layer structure. The filter does NOT use oil or chemicals of any kind to aid filtration and will not degrade over time with exposure to varying temperatures and humidity like similar cotton based filters. As well as the lack of fillers such as oil, that can be pulled from the filter creating a less efficient media, it creates consistent performance between all cleanings over the lifetime of the filter. The filter is easily cleaned by blowing compressed air across the media from the inside out to blow off residual dirt and dust.

Built To The Highest Standard

To take it one step further the filtration media is tested using the ISO 5011 Fine Testing Standard to a minimum of 97% efficiency rating.


Let your 2.3L EcoBoost breath, order your AMS Focus RS High-Flow Air Filter today!

Exclusive Benefits

  • 10whp increase at 5500 RPM
  • High flow, low maintenance dry media filter


  • 2016+ Ford Focus RS

Product Notes

  • The filters use specially designed media that allows performance and efficiency to be restored to near new each time by simply using compressed air (30-40 psi) from the inside out, making frequent washing unnecessary in order to restore filter performance. For a deep cleaning from extreme environments, a biodegradable cleaner such as Simple Green or other mild shop degreasers can be used. Simply place the filter in a solution or spray the cleaner on the filter. Allow the solution to loosen the particulate and then rinse thoroughly. Shake the filter or use compressed air from the inside outward to remove residual water and allow a full day to dry.

Additional information

Weight 5 lbs
Dimensions 9 × 9 × 13 in


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The goal of AMS is to provide the highest quality, best performing products available.
By utilizing research and development and rigorous testing programs AMS will never compromise the quality or performance of our products.

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