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Old 02-22-2003, 01:36 PM
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Lightbulb NEED info...K & N AIR FILTERS

HEY guys, i wanna know if there are any drawbacks of using K & N AIR FILTERS i dotn know any one who has them
thanks in advance
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Old 02-22-2003, 02:10 PM
I told you so!
Join Date: Jun 2002
Location: Motor City, MI
Posts: 2,804
They let more particle contaminants into the engine when compared with paper filters.

They're dependant on the owner to dutifully clean and recharge the filter for maximum efficiency.

They can potentially wreak havoc with the mass air flow sensor. FWIW, the owner's manual of my mother's new Mercury Sable specifically warns that use of oil-impregnated air filters such as K & N will void the engine warranty. Definitely avoid using K & N during the warranty period.

In the grand world of engineering design, there is no "best". There is always a compromise or trade-off, even if it's just cost.
95 E320 Cabriolet, 140K
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Old 02-22-2003, 07:59 PM
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Join Date: Nov 2002
Location: Scottsdale, Arizona
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On the counterpoint . . . I've never had a problem with K&N air filters on my cars or bikes. About the only problems I've heard of have been the result of new owners going overboard on oiling the already pre-oiled filter, which then affected the MAS wires.
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