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Aftermarket Engine Air Filter

Discussion in 'Gen 2 Prius Accessories & Modifications' started by NROhioPruis, Jun 25, 2008.

  1. F8L

    F8L Protecting Habitat & AG Lands

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    Or Boost and spray..... Meth! :usa2:
     
  2. problemchild

    problemchild New Member

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    The same people who I posted about above tested EVERY air filter made on a 200,000 dollar flow bench. The tests were done by the pros. The final verdict was the GM OEM filter was the best for the trucks and the KN/UNI foam and cleanable filters were the WORST by a long shot. About the only thing the KN filter would stop was squirrels and small stones. It was allowing so much dirt to get into the engine it was unbelievable. I would not put that garbage on any motor I owned.







     
  3. MR.K

    MR.K Junior Member

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    Yea but over 400 $ for a stock air box when yours is damaged ...50 $ sounds pretty good....
     
  4. amm0bob

    amm0bob Permanently Junior...

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    You're in Cali right Bra...

    First off... if the air filter/intake is not CARB approved, you wont pass smog.

    Second... The stock air-box is very efficient.

    Third... stay away from oiled-foam filters with modern electronic controlled sensors (MAF/MAP etc.) that get contaminated with the oil from the incoming air over that filter. These type of filters work quite well with a carb motor and someone that isn't too keen on changing dirty filters very often, but are a detriment to finely tuned and monitored fuel injected ones.
     
  5. northwichita

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    Thanks for all the info, I learned a few things from them. I'll probably stick with oem filter, my question concerned reusing a stock filter after blowing it out with an air gun. I drive all day on dusty roads, and have been in the habit of cleaning the air filter in other cars every oil change, to minimize the cost of new ones. I shook the prius one out last week, got some dust out, it looked more like cloth/synthetic then paper.. Washable? A rural carrier.

    I looked this up in my Bentley manual, says clean element with compressed air, if not extremely dirty , nothing about washing it.
     
  6. GatorJZ

    GatorJZ Member

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    Hate to burst your bubble, but the "pro" who conducted the "test" you are referring to, Username Spicer on bobistheoilguy, is a tree trimmer by profession, not exactly an engineer. He tested one application only and you can not extend his results across the board to all aplications of all filters. While I have some slight misgivings about K&Ns, they are FAR better filters than you are giving them credit for.
     
  7. Rakimb17

    Rakimb17 Junior Member

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    A little Meth never hurt anybody...lol
     
  8. F8L

    F8L Protecting Habitat & AG Lands

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    Agreed! Chris Chow of GN fame got me hooked on the stuff. I still have all my teeth though. :D
     
  9. 60psi

    60psi New Member

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    a 2 1/2 lb huffy bike!