7159 Green Filter High Performance Cylindrical Air Filter Green Color - Ford Focus/Focus RS/Transit Connect/Escape

SKU: FS7159
  • $68.99
  • On Sale
  • 20 reviews

Because of its unique and organic composition, cotton is the ideal material for use in high-performance air filters. But beyond the mere use of the material, Green High-Performance Air Filters are uniquely designed to take full advantage of cotton's capabilities.

Unlike multi-layer gauze filters which can fray and release fiber particles into your engine, Green Filter USA uses two layers of tightly interwoven cotton fabric. The 3 main benefits of woven cotton are the fact it's thinner, holds oil better and is stronger. Since its thinner, it allows better airflow without sacrificing filtration. The cotton holds the oil more evenly, and the medium is much stronger. Unlike gauze, you cannot wear a hole in woven cotton by rubbing it, and there is no way small bits of cotton can rip off since it's interlocked with another piece.

Cross weaving one fine, and one medium layer produces a fabric that is thinner and stronger than other materials and has the ability to trap dirt up down to 5 microns. The result is better airflow without sacrificing filtration. And because the fabric is so durable, it can be washed and reused over and over, which allows us to give it a lifetime guarantee.

Green Filter USA filters are coated in steel mesh for extra strength and durability, because of this, Green filters are much more dent resistant.

Other filters use a simple pressure molded injection process to bond the perimeter rubber to the interior components. That method saves manufacturing time, but in the process, a considerable amount of rubber can seep onto the filtering surface. This can restrict airflow as much as 25%. Green Filter USA uses a time-consuming and costlier 4 step production process that virtually eliminates seepage and maintains maximum airflow through the filter.

Green Filter USA filters come pre-treated with a specially formulated dirt trapping oil. This oil creates a positive magnetic charge, or ionic bond, with the filter's stainless steel mesh. The positive charge attracts the negatively charged dust particles entering the filter, causing them to cling to the steel mesh and allowing the cotton to remain clear for maximum airflow.

*Factory plastic airbox not included.

Note: A noticeable increase of induction noise is created with all open filter air intake kits. Only the ITG filter part#15BH-262 in the stock airbox will maintain OEM-like sound levels. 

7159 Filter Fitment:
FS018OEMG FSWERKS Green Filter Cool-Flo OEM Air Intake System - Ford Focus ST 2013
Ford Focus ST EcoBoost 2.0L 2013 2014 2015 2016 2017 2018 Stock OEM Airbox
Ford Focus TiVCT 2.0L 2012 2013 2014 2015 2016 2017 2018 Stock OEM Airbox
Ford Focus 1.0L  2015 2016 2017 2018  Stock OEM Airbox
Ford Escape EcoBoost 1.5L 2017 2018 2019  Stock OEM Airbox
Ford Escape EcoBoost 1.6L 2013 2014 2015 2016 Stock OEM Airbox
Ford Escape EcoBoost 2.0L 2013 2014 2015 2016 2017 2018 2019 Stock OEM Airbox
Ford Focus RS EcoBoost 2.3L 2016 2017 2018 Stock OEM Airbox
Ford Transit Connect EcoBoost L4 1.6L 2014 2015 2016 2017 


Part Of: FS018OEMGB

Customer Reviews
4.8 Based on 20 Reviews
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Filter Reviews:
FSWERKS 7159 Green Filter High Performance Cylindrical Air Filter Green Color - Ford Focus/Focus RS/Transit Connect/Escape Review


VERY easy install, installed this along with a velossa-tech big mouth and wow i can feel the hp already over the stock paper filter, along with the power gains, you also get the sound of a cold air intake, and a little boost in gas mileage. 10/10 purchase for my 2015 Ford Focus.

Cole R.
United States United States
Peyton C.
United States United States
Theimen K.
Netherlands Netherlands

Doesn't really fit with the air box closed but otherwise it's a great filter

angel s.
United States United States


Make sure its placed into the stock groove of the air box as it should fit perfectly yet snug and have no issues closing the air box.


Instant Gratification

Awesome bang for buck mod that doesn't require any modifications to your stock airbox for an awesome intake note and being able to pull through those revs just a bit quicker. With this filter and running on e85 with no tuning this car already feels like an animal. Will literally torque-steer at the top of the revs now which was NOT what I was expecting and is a pleasant surprise such a cheap modification can actually make a difference on a non-performance oriented car. Tl;Dr bought it for extra noise while driving and to my surprise I think I picked up some extra power just running it in the stock airbox

Zacharia G.
United States United States

Great Product

You can finally hear the turbo with this had boy. no drone inside cabin, decently louder overall outside the car while idling and at full throttle. Would def recommend!

Brandonq T.
United States United States

Huge improvement on sound

This makes a big improvement on sound, you can actually hear the turbo now. But the fitment isn’t the greatest. I decided to just leave the top of the air box off and buy the cap for the filter just for the extra protection.

Nickolas L.
United States United States

Great Buy!

Installed this on my 13 Focus ST! Fit perfect, Definitely and under 5 min installation. Would recommend to anyone looking for a performance filter for there ST.

Taylor P.
United States United States

Can’t complain

Got my purchase earlier than expected and didn’t have any issues. Can’t complain. Got my green filter about a 4 days earlier than expected

Mason G.
United States

Great purchase

Sounds and performs awesomely. Save yourself the money on buying a whole air intake kit and pick up this filter... you wont be disappointed!

Kyle D.
United States

Fast shipping, great prices

The open ended design of the filter, gives the car a nice grunt on acceleration, but with the throttle nearly closed, a quiet cabin. I feel like it's got a bit more midrange snap.

Joseph P.
United States


If you are looking for a slight performance boost that's not going to brake the bank but but reliable. You can't go wrong with this filter Plus it allows for a good intake sound.

Tyler T.
United States

Good, but could be better.

Seems to be a good K&N alternative, however, the fitment is too large to allow the air box cover to fit properly. Got the pre-filter sock so no big deal..

United States

Bought filter and short shift

It's been smooth so far. It should be good as its not rocket parts

ernesto d.
United States

Easy Upgrade!

The whole process takes less than 10 minutes to replace the throw away filter with the green filter. The sound is a lot louder but I wouldn't call it obnoxious. The quality seems high and the green is a nice touch. If you use the factory air box lid, only a small portion of the filter is exposed. I recommend this filter as long as you don't mind extra intake noise.

Patrick G.
United States

Green Filter is worth it

Just as everyone states. Sounds louder than stock. fairly easy to install and is a cool color. Recommended for the price! Dont forget to Oil!

Alvaro P.
United States

Go green!

Installation was a breeze... I deleted the air box and all respective hoses/snorkels/silencers. A nice gurgle now emanates from the underneath the hood, almost has a Ducati-esque sound to it. I’m a motorcyclist, so I dig it. I highly recommend the green filter, which is the same filter as the Cobb filter. Green filter actually makes the filter for Cobb, the only difference is the color, which makes it easier to see when your filter needs to be cleaned on the green filter. Now to free up the exhaust flow.

Raul T.
United States

Awesome purchase

Shipping was quick, no damages or poor packaging. Took less than 5 minutes to put on and sounds amazing! Definitely a must have in my opinion.

Steven E.
United States

Solid product so far.

Great filter so far been using it for a few thousand miles with no issues. You can hear more of the turbo blow of with it. Fits better then the auto parts store brand.

Andrew S.
United States

Green Filter

Great filter, have used before on previous cars. FSWERKS always delivers with the best customer service and I always get my goods fast. Keep it up

Alec V.
United States