Thread: Homemade pre air filter.

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  1. #1 Homemade pre air filter. 
    JT2002GTP
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    Default 04-28-2013
    Has anyone tried shop vac pre filter foam, or panty hose for a pre filter ?
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  2. #2 Re: Homemade pre air filter. 
    dsmuts
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    Default 04-28-2013
    Why do that?
    98 GTP modded 1.9's, sd headers, 3.4", zzp 1.0 230K miles scrapped.
    04 Comp G zzp stb's, UMI ta's, Speedbuilt sways, bully flo heads, XP, zzp headers, fsic, thrasher shift kit, 60#, 2.6" corsa 2.5", Inferno hood
    01 gt z7 turbo tep trans zzp motor
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  3. #3 Re: Homemade pre air filter. 
    machinegunsquid
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    Default 04-28-2013
    Periodically unscrews 1 Phillips head screw, knocks filter out, puts back on.
    Clean.



    We don't need no fancy pre filters.

    "**** bills. You can live in your car but you can't race your house" -dsmuts
    Want her to stop when she's not looking karate chop her in her crotch that should quiet her for a bit or at the very least put a smile on your face -REDCOMPG
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  4. #4 Re: Homemade pre air filter. 
    mechguy
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    Default 04-28-2013
    My K&N filter is a basically just a pre-filter.
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  5. #5 Re: Homemade pre air filter. 
    JT2002GTP
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    Default 04-29-2013
    I would guess it would double the life of an amsoil air filter. There not oiled like K n N and let more air through than K n N.Amsoil sells the blue mesh sock but they want $30.00 for it, going to improvise.
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  6. #6 Re: Homemade pre air filter. 
    JT2002GTP
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    Default 04-29-2013
    How is that ? You have two air filters ?
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  7. #7 Re: Homemade pre air filter. 
    TLSheff
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    Default 04-29-2013
    Aem 9"x4" Conical Dryflow Air Filter Element 21 2059DK | eBay

    $14.75 + $7.50 Shipping. I just order 2 and keep one on the shelf, dry flow, solid filter, cheap.
    Pre-filter is just more restriction from the supercharger, and its just one more thing to clean, who has time for that???

    Quote Originally Posted by AmericanSoldier View Post
    ...not scanning/monitoring your motor is like bangin a hooker and you just HOPE your not infected.
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  8. #8 Re: Homemade pre air filter. 
    Neil98gt
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    Default 04-29-2013
    Quote Originally Posted by TLSheff View Post
    who has time for that???
    Aint nobody!!!
    98 GT 2dr 116k, Sold
    07 Lexus ES350 Obsidian Black. Premium Plus package, sold
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    2002 Grand Prix GT 4dr
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  9. #9 Re: Homemade pre air filter. 
    smoke14
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    Default 04-29-2013
    Those are so the filter can't suck up water. I usually see them on AEM and Injen filters mounted low in the bumper. Think there called a hydroshield.
    "You know, all that really matters is that the people you love are happy and healthy, everything else is just sprinkles on the sunday."

    -Paul Walker
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