Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Air Filters

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Old Mar 17, 2004 | 08:16 AM
  #1  
wrx21's Avatar
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Car Info: 2004 Impreza WRX
Air Filters

Which Air Filters out there for a WRX are the best .. K&N, Perrin, Green, Cool Blue, etc...

And are they worth the money?
Old Mar 17, 2004 | 09:27 AM
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if your car is stock, then stick with the paper filter. if you're running a reflash, or more substantial mods, you may want to run a higher flow filter.
Old Mar 17, 2004 | 02:10 PM
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K&N is great as it never has to be replaced, just make sure all the oil is cleaned and dried off it or it could cause problems.
Old Mar 17, 2004 | 04:48 PM
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i hear amsoil? has a foam filter that is pretty good. just what i hear though.

or was it mobil?
Old Mar 17, 2004 | 06:55 PM
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http://www.scoobymods.com/forums/sho...&threadid=2271
Old Mar 18, 2004 | 11:39 AM
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Cool I hadn't ever really looked into the green filters that much but from what I can see from Peatys Post That might be the routt to go.

Thanks Guys,

-John
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