Page 4 - Question of the Week

  1. Do I need a Catch-Can or an Air-Oil Separator?

    Do I need a Catch-Can or an Air-Oil Separator?

    This Question of the Week is one that we get asked very often.

    Do I need a Catch Can or an AOS?

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  2. Should I Upgrade Cams, Valves, or both?

    Should I Upgrade Cams, Valves, or both?

    If you are building your engine to make more power, there are a couple of things to consider.  You definitely want a turbo that can make the power that

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  3. To Twin-Scroll or Not to Twin-Scroll, That is Our Question of the Week

    To Twin-Scroll or Not to Twin-Scroll, That is Our Question of the Week

    In the Subaru community, the Twin-Scroll turbo configuration that was used on the JDM STI starting with the Version 8 STI is considered the ideal turbo setup.

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  4. WRX and STI Differential Upgrades and Tuning

    WRX and STI Differential Upgrades and Tuning

    In an all wheel drive car, power is sent to all four wheels through your drivetrain.  Because you are sending driving force to all of your wheels, one

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  5. How to pick a new Turbo

    How to pick a new Turbo

    If you have a Subaru WRX, STI, or a turbo Subaru, there is a good chance that sooner or later you are going to consider putting on a new turbo. The most

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  6. When should I smoke test my car?

    When should I smoke test my car?

    One of the most common issues that can come up on a tuned Subaru, or a turbocharged Subaru as it ages is a vacuum leak. The most common of these are not

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  7. What is a Dyno Correction Factor?

    What is a Dyno Correction Factor?

    A chassis dynamometer, or "Dyno", is tool that calculates your car’s horsepower and torque output. They can do this through a few different method’s, but the

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