Levorg Air Filter Upgrade

Discussion in 'Subaru Levorg Modifcations' started by Luca, May 2017.

  1. Luca

    Luca New Member

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    I decided to change the stock Denso air filter with a direct replacement for Apexi.

    I can definitely hear the induction sound a lot more and feel that it is a little more responsive though this could be the placebo effect! :)

    Anybody else changed their air filter or had a full cold air intake setup and had some sort of tune done after changing it and what was your result?
     
  2. AKKO

    AKKO Member

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    ^ Not sure about elsewhere but time on a dyno is just too damn expensive just to tune / measure gains for a new airfilter alone, most would do exhaust at a minimum.

    Perhaps then swapping in and out airfilter for comparison whilst on dyno retuning for the exhaust might make sense.

    Fwiw K&N appear to claim ~9HP gains for the WRX
     
    Last edited: May 2017
  3. Stumpvold

    Stumpvold Active Member

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  4. ozkan bicer

    ozkan bicer Active Member

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    A friend of mine ordered an AEM intake kit for 2.0 Lt WRX and lots of error codes. We ended up decreasing the size of the intake pipe to make it work without any error codes or malfunctioning. Obviously the air amount both engines need is different .
     
  5. Peds

    Peds New Member

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  6. AKKO

    AKKO Member

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    ST1654621010 - STI Panel Filter is also an option, least likely to impact warranty though pretty easily swapped out like most if need be.
     
  7. Parian

    Parian Active Member

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    Replaced OEM filter with a Cosworth high flow synthetic air filter.
     
  8. leighaus

    leighaus New Member

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    I've got the apexi in, also blocked off the milk bottle baffle.
    More aggressive induction noise, however no power on the bum-dyno to be noticed.
     
    STI sport Sydney likes this.
  9. STI sport Sydney

    STI sport Sydney New Member

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    Hey Leigh did u remove the milk bottle thing or just block the hole from the inside??
     
  10. leighaus

    leighaus New Member

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    Just sealed it off with elec tape
     
  11. STI sport Sydney

    STI sport Sydney New Member

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    Any issues?
     
  12. leighaus

    leighaus New Member

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    Nothing I can report.
     
  13. STI sport Sydney

    STI sport Sydney New Member

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    Awesome, I just taped off mine! Sounds heaps better... Wonder why people go to all the effort of getting that bloody milk bottle thing out when u can just tape the hole up????
     
  14. leighaus

    leighaus New Member

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    Yea, definitely creates induction. Taking it off looked a little tedious and didn't want to damage anything. If you tape it well it will hold up fine
     

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