I recently replaced the stock air filter in my 2005 Tacoma (2.7L 4 cylinder) The new filter is a K&N. Does anyone have any input as to the reliability of these filters? So far I have gotten varied opinions from other sights. Has anyone had any experience with these filters?
Denny,
I have always had K&N filters in my vehicles. The performance difference is minor but you never have to buy another air filter again. I did notice a slight difference with the full kit on my current truck.
Denny,
Although I don't have any direct experience with the K&N filters, others on the Toy_Coma list have had problems with MAF sensors going out because either the filtration is poorer or through oil contamination.
This could be due to improper cleaning / over oiling but I know at least a few of the list members have jettisoned the K&N in favor of the stock setup.
-- Mike Harris Austin, TX List owner, Toy_Coma autos.groups.yahoo.com/group/Toy_Coma/
I've tried K&N filters as well as oiled foam filters.
-I've found no performance improvement over a top quality conventional air filter.
-I don't like the mess of cleaning and re-oiling the filters.
-In one car the K&N allowed dust past the filter. The downstream side of the airbox was dusty, so dust certainly went into the engine. OEM filters never allowed dirt to pass this way.
I stick with OEM or top quality aftermarket conventional filters.
Ken
I used a K&N air filter many, many years ago (the car is long gone) and didn't really notice any difference. Of course it was more reliable than traditional paper filters (the K&N filter is probably still in my
1987 Daytona Shelby Z), but I didn't feel it was worth the hassle of cleaning and the initital monetary investment.Just my 2 cents, Eric
Denny wrote:
Yup oil them too much and there goes your costly MAF sensor!
Put a K&N filter on my 88 V-6. Failed emissions; both NOx and hydrocarbons were high, which according to a mechanic are mutually exclusive conditions. High NOx is from high exhaust temperature and high hydro's are from a cool exhaust.
Since I had too many vehicles with rusted bodies at the time, I wound up donating it to a charity for budding mechanics to practice on.
Afterward I researched oiled filters. Will never own another one.
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