Ben_L Posted February 1, 2016 Share Posted February 1, 2016 Hi, im new to FOC but have had my 2011 1.6 ecoboost focus for a couple of years now and *touch wood* as nothing has gone t*ts yet i havent needed to seek advice. I have been thinking about upgrading my standard paper air filter to a K&N replacement filter. And am wondering if anyone can offer some advice. I used to have an open air induction kit on a old car which was pretty rubbish, slowed the car down if anything- although it sounded wicked. I've not had a major service done yet and believe air filter hasnt been replaced (on 23k). Has anyone replaced theirs for one of the E-9289 filter with removable bung in the end? Ive read online that these filters may not filter the air to the engine as well as a standard filter. Is it worth the £50? Will it affect my insurance? cheers all Quote Link to comment Share on other sites More sharing options...
djsubtronic Posted February 1, 2016 Share Posted February 1, 2016 Hey, I recently fitted one of these plus the larger K&N lid on my 1.6 Focus MK2.5 (100 PS) and other than the improved sound, there is a noticeable improvement in the overall smoothness of the engine. It revs more freely (especially at 5K and above), doesn't bog down as much either, and I swear there's a slight improvement in acceleration - although that might just be a placebo effect or just due to having a heavier foot due to the improved sound :) Regardess, I think it was a decent improvement for my engine, but obviously I can't comment for yours. As far as insurance, because it's not a manufacturer spec filter I declared it anyway just to be safe, it didn't really affect the premium much but it does go up a little bit. Quote Link to comment Share on other sites More sharing options...
Ben_L Posted February 1, 2016 Author Share Posted February 1, 2016 Nice one. Thats helpful to know 👍🏼 Maybe i will do an insurance quote and decide from there Quote Link to comment Share on other sites More sharing options...
Ben_L Posted February 2, 2016 Author Share Posted February 2, 2016 Seems to increase by only about £7 a year Quote Link to comment Share on other sites More sharing options...
Ben_L Posted February 6, 2016 Author Share Posted February 6, 2016 Ive read reviews on a website and people were saying they woukdnt touch these filters as they dont filter the air as well. Any of you guys have any experiences due to lack of filtration? Quote Link to comment Share on other sites More sharing options...
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