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Old 08-05-2009, 02:34 PM   #20 (permalink)
nahtanoj
EcoModding Lurker
 
Join Date: Jul 2009
Location: san diego
Posts: 11

civic - '08 honda civic lx
90 day: 34.92 mpg (US)
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i just read an article, if i recall on this site, doing a comparison on K&N vs. stock paper vs. no filter at all. there was no noticeable difference in mpg at all. no filter got the worst, stock got the best, but only by .6 mpg, or some small number like that.
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