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The only drawback is the factory inlet tube from airbox to the turbo itself, that is where ETS comes in to save the day. This kit replaces a 100% of the factory inlet tube and converts the filter from 2.5" to 3.0" for even better flow. This is the ONLY intake modification you should be making on your Focus RS! Features:
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QUESTIONS & ANSWERS
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Will this work on a 2015 ford focus st?
It does not. This only works on the RS.
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How much for just the filter? I already have this intake.
This is the filter you are looking for.
https://www.extremeturbosystems.com/collections/air-filters/products/ford-focus-air-filter
