K&N filter on 03 expedition

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CFR91

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Jul 13, 2013
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I installed a K&N filter system onto my Expedition today. The job was very easy, done in one hr. In the few miles I have driven with the new filter the computer tells me I have gain 1 mpg. this has been is short trips. looking forward to a long trip to see if there is better news.:
 

PAcountryBOY

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I had the K&N 69-8431TP installed on my 03 Expy FX4 for a little while and gained +2 MPG on short trips and between +4-5 long trips. I ended up selling it and switching to the JLT RAI, which sacrificed some MPG for extra throttle response and torque. Still miss the extra time between fill-ups.
 
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