I bought the washable k&n one on Amazon because I died a little inside when I saw how much they wanted for a shitty filter
I use K&N washable filters for both my engine and cabin. Should last the life of the vehicle.
I have used them for years and feel the car runs better. I use the K&N cleaning kit and their instructions on YouTube and have never experienced fouled MAF issues.
I’ve put 125,000 miles on my 350Z and 120,000 miles on my G37S using nothing but $7–$10 Fram air filters—never had a single issue.
2020 wrx premium has 217000 miles, stock except K&N air filter. Change oil every 6000 miles and tap out and remove debris from air filter every 3000 miles and clean every 6000.
I did this to my 7.3 and 6.0. Did I notice anything? Not really. But mechanical and engineering theory it will do something. How is it called a "cold air in take" if its sucking the hot air within the engine bay?
I’d do have a K&N air filter which is supposedly good for better mpg.
If not, get rid of that K&N. High flow air filters let everything in, you do not want road dust a debris getting into your engine, and a K&N is the best way to causing that.
The reusable filters don’t filter as good as the paper ones you throw away. I can’t understand why anyone recommends drop ins. Just do any amount of research and everything says the OEM style paper filters that are meant to be replaced have a far better ability to filter the air being taken in. I guess the only benefit to the reusable ones like K&N or aFe are the longevity factor meaning you can clean and reuse so they cut down on maintenance cost a little.
Do you know why you gain so much hp with a K&N filter? Cause they dont filter shit
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