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.

CARB-legal BOV?

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Old Jun 10, 2006 | 11:15 AM
  #1  
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Carb Bov?

Does anyone make a CARB legal (with EO #) BOV for the 02 WRX. I can't find one and don't want to deal with somg legality.
Old Jun 12, 2006 | 10:21 AM
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There isn't a CARB-legal BOV and there won't be one. Any atmospheric BOV or adjustable BOV will vent some of the metered air to the atmosphere, which can upset MAF sensor readings and fuel calibration. For this reason, I don't believe any valve other than a non-venting compressor bypass valve like the factory one can obtain a CARB Exemption Order number.

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Old Jun 12, 2006 | 10:26 AM
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I just put on the SPT intake which is CARB cert. The stock BOV can be heard quite well.
Old Jun 14, 2006 | 11:06 AM
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can it be heard with the music up or not?
Old Jun 14, 2006 | 12:32 PM
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there is the re-circulating bov, by PERRIN. But, I do not think that one is C.A.R.B approved either.
Old Jun 14, 2006 | 07:50 PM
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Originally Posted by unstble
there is the re-circulating bov, by PERRIN. But, I do not think that one is C.A.R.B approved either.
Greddy makes a re-circulating BOV too but no CARB #.
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