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Old 08-31-2012, 03:33 PM   #25
dan50
Focus Addict
 
Join Date: Nov 2011
Fan#: 91789
Location: Too much info, IL
What I Drive: 2012 SEL White Platinum 5 Dr 302A

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Quote:
Originally Posted by suss6052 View Post
Well $50 once give or take, + supplies to recharge/ clean at 30-50k miles should probably end up costing less than replacing the O.E. filters every 12-20k miles over the lifetime of the vehicle, it seems to at least slightly perceptiblly have a positive benefit to throttle response vs the O.E. paper element filter, etc. I think it was worth it, but only you can decide. \

However if you do go this route I'd recommend not waiting until your current filter needs replacement as you will want to keep the original or a clean replacement o.e. filter if you need to drive the car while the K&N filter is drying after being cleaned and oiled.
While I have no personal experience with it, oiling the K&N filters seems to be a bit of an art and can cause problems if done incorrectly. Too much oil can foul the MAF, too little reduces the quality of filtration. I think these should be limited to the province of the skilled or the brave, not the novice.
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