Intake/Boost leak?
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This is a discussion on Intake/Boost leak? within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; I got a 2012 WRX with the below listed mods. The stock throttle body hose literally disintegrated so I replaced ...

  1. #1
    Registered User Rexosaurous's Avatar
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    Intake/Boost leak?

    I got a 2012 WRX with the below listed mods. The stock throttle body hose literally disintegrated so I replaced it with a Grimmspeed Throttle Body hose. I had to take the TMIC off to fix it, knocked the BOV vacuum line off, replaced it. Ran fine. Not when ever I get into boost i can hear a loud wind rushing noise to overpowers the turbo spool. No CEL's. Obvious performance difference when boosting. Any idea's?
    2012 Grey WRX Sedan
    Cobb SF with Cold Air Box
    Agency Power Headers
    Agency Power Catless Downpipe
    Agency Power Cat Back Quad tip System
    FMS Uppipe
    Protuned by Anthony Drunkmann Tuning!

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  3. #2
    Registered User Rexosaurous's Avatar
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    Anchorage, Alaska
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    Figured it out...blown uppipe to exhaust manifold gasket. Click image for larger version. 

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    2012 Grey WRX Sedan
    Cobb SF with Cold Air Box
    Agency Power Headers
    Agency Power Catless Downpipe
    Agency Power Cat Back Quad tip System
    FMS Uppipe
    Protuned by Anthony Drunkmann Tuning!

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