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Guest Message by DevFuse

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cone filter or air box?

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4 replies to this topic

#1 offroadsubaruguy


    Subaru Nut

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  • arvada, colorado

Posted 30 July 2007 - 08:29 AM

so heres the deal, i have an intake on my 90 legacy. it comes with a cone filter.... so heres the question, i also have a modified airbox from my durango that will fit the intake, so should i run that or should i run the cone filter and make a seperator to keep the warm engine bay air out of the intake?

#2 porcupine73


    Obligate carnivore

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  • Buffalo, NY

Posted 30 July 2007 - 09:05 AM

Whichever you do, if that vehicle has a MAF, the diameter of the intake tube that the MAF is in must remain the same as original. Otherwise MAF reading will be incorrect.

#3 Legacy777



  • Moderator
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  • Houston, Tx

Posted 31 July 2007 - 12:17 PM

The MAF is a separate unit, and shouldn't be modified......

Personally, I'd go with the airbox. The cone filters can cause issues with sucking hot/turbulent air, and the MAF sensor not reading the air flow correctly.

#4 nipper


    Semi Elite Master of the

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  • Long Island NY

Posted 31 July 2007 - 01:02 PM

airbox, and no oil soaked filters. Those can damage the MAF.


#5 xrturbo


    Subaru Fanatic!

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  • allentown

Posted 01 August 2007 - 11:45 AM

Double that on the oiled filters. Everytime I have ever tried an oiled type air filter it started to run like crap and wound up needing another MAF.

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