2016 ST1, 205k miles, green filter and hood struts. That\u2019s it. Keep your oil changed, and there\u2019s nothing wrong with a little \u201cspirited\u201d driving here and there, that\u2019s what the car was built to do. They handle soo nice.
The only mods I ever did was a green air filter, symposer delete, and put in yellow led fog lights. It has only needed a few small things fixed, other than normal maintained stuff like fluid changes, brakes, tires, whatever.
Delete the sound symposer and get an aftermarket air filter. I\u2019m partial to the Green filter. Have had it for 100k and clean it every third oil change.
Ran a K&N for years in my Focus SVT, put on a supercharger and blew it up…with 110,000 K&N filter miles the cylinders still had cross hatching. I suspect that means the filter did its job
I didn't have any kind of smells at all after my Green filter install.
I have a Green Filter and have never had this problem
I installed K&N. Great replacement for the stock filter. Noticed a bit more induction whistle and the car definitely feels like it breathes better.
The Green Filter has an immediately noticeable higher quality and not having to replace it will have it pay for itself in time.
I've got the green filter. It's the same filter, just a different color. I like it, it adds just a little bit of intake/turbo noise. I run mine with the airbox lid on.
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This part for Ford Focus is made around the world. We have reviews for air filter manufacturers from countries such as: Germany, China, USA .
In March 2026, the ranking of air filter for Ford Focus on PartReview included 3 manufacturers. It is based on 9 reviews and 27 votes.
Last month, PartReview users preferred GREEN FILTER. 44% of positive votes went to this manufacturer.
In second place: air filter UGREEN — 33%.
Third place: K&N with 22% of the votes.
In the overall ranking of air filter, which aggregates opinions of owners of different car makes and models, these brands hold the following positions:
After seeing which air filter owners of Ford Focus prefer, check other popular parts for this car. In March 2026, leaders on PartReview were:
You can also see what Ford Focus owners chose among such parts as: Brake discs, Alternator, and others.
