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The Kn Filter Difference

pdjpeter
pdjpeter
in General Chat

Featured Replies

Hi all,

i've got a 2011 ford fiesta 1.6 and have been on about fitting a KN air filter for ages but never got round to do it. but before i go ahead and do it i'd thought i would ask the question.

do they actually make a difference or would you only notice the difference in your STs etc

many thanks

  • Quote


    The days of any major differences between performance filters & stock / O.E.M.ones are long gone, any b.h.p. gain will be barely noticeable & some oiled ones can interfere with M.A.F. sensor operation.

    Not worth it i.m.o.

  • Quote

    I asked the same question a few weeks back (was thinking of getting K&N kit) bust was advised by the majority not to bother.

  • Quote

    I have the Pipercross air filter on my car. £50 quite happy with it, added with a blank plate car picks up nicely also helped with MPG slightly. Should last the life of the car if i remeber to clean it every year.

  • Quote

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    The "Digestive"

    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
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