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K & N filter in Prius ...Anyone?

Discussion in 'Gen 2 Prius Accessories & Modifications' started by awai08, Jul 26, 2008.

  1. awai08

    awai08 New Member

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    For anyone that has tried the drop-in filter, have you observed or measured any improvement in power and/or fuel efficiency? I'm interested in adding a several hp to my Prius, as it gets a bit winded while trekking up into the mountains on the interstate freeways.
     
  2. awai08

    awai08 New Member

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