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Go Back   REVscene Automotive Forum > Technical Discussion > Advanced Forced Induction & N/A Engine Tuning

Advanced Forced Induction & N/A Engine Tuning This forum is brought to you by Racing Greed in Port Coquitlam.
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Old 03-02-2011, 09:51 PM   #1
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K&N Airfilters with a hotwire MAF

Will putting K&N filters on a car with a hot wire mass air flow sensor screw with the sensor? I heard the K&N's are oil based and will coat the MAF causing a LOSS in power, even damaging the MAF's in some cases..

Should I stay away, or is it fine?
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Old 03-02-2011, 10:30 PM   #2
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http://www.knfilters.com/MAF/massairfindings.htm

although it IS published by K&N, it says it doesnt damage the MAF
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Old 03-03-2011, 06:06 AM   #3
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You should consider a cost/ benefit ration.. a heated wire MAF replacement cost vs imagined horsepower / better sound worth to you.
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Old 05-15-2011, 03:35 PM   #4
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before you install the kn clean off all the excess oil from the filter ,youl be surprised with how much u are able to wipe away with a lint free towel...also periodic cleaning (very gentle) of the maf is good insurance..It was a common prob on 5.0s causing irradic idle and hanging revs ,which had guys changinging out tuneup parts unnecesarily trying to solve such an ez prob..
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Old 10-19-2011, 08:04 PM   #5
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It damages the MAF, ask any Nissan technician. Overtime the oil will coat the wires.

K&N are junk filters, either go AEM DryFlow or Apex'i.
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Old 10-20-2011, 03:35 PM   #6
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Damages the MAF and +1 to Apex'i filter.

Lots of BMW owners are plagued with this problem until they swap out for the stock filter.
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