I've had one for years and no issues. Just oil it correctly. Also, watch engineering explained video on it and it does add some power. Not much. And I don't have any mpg gains.
I would recommend a K&N cloth filter. They can be cleaned and re-oiled about every 50K miles. They never need to be replaced.
I run K&N's on my Harley and the blower on my SBC. No issues.
I replaced the air filter with a higher quality paper k&n, but thats it for anything under the hood.
a k&n air filter, it changes the car a fair bit and gives it some new life too
I have the K&N air filter in my Badlands. Difference is very minor.
I worked with a testing manager for Wix 10 years ago and I asked him about K&N filters. He said that they are okay brand new and their effectiveness drops after trying to clean and re-oil them. And you are assuming that the person using it is actually clean correctly and not over oiling it.
The k&n gets you nothing except for letting a lot of dirt through if you don’t oil it regularly.
K&N air filter is rated as the worst thing you can put on your vehicle. We tested different 'cold' air intakes when I went to Nascar Tech and K&N will take away around 8 horsepower.
I had a Jeep with a K&N air filter with the "do not discard- permanent filter" stickers on the air box. I loaned it to a friend for a few months, and to thank me, she took it in to get the oil changed. They told her the air filter was oily and needed replaced, and she told them OK.
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