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Thread: 2.0t to air box mod or not?

  1. #1
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    Vehicle : Signum

    Trim : Design

    Engine : 2.0T


    Default 2.0t to air box mod or not?

    I'd seen the "air box mod" mentioned a lot in various threads as a cheap way to improve airflow.

    My understanding is that the results of this type of mod depends heavily on the engine, so, is it worthwhile on the 2.0t? What are the pluses and minuses? And while we're at it, is a k&n or similar high flow filter a worthwhile upgrade for this engine?

  2. #2
    Regular Member beat275's Avatar
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    Vehicle : Hatch

    Trim : SRI

    Engine : 2.0T

    Year : 2003

    Mileage : 90000

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    I added an extra pipe from the box to the front and have a pipercross filter. Same engine

  3. #3
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    Quote Originally Posted by beat275 View Post
    I added an extra pipe from the box to the front and have a pipercross filter. Same engine
    thanks beat275, did you notice an improvement?

  4. #4
    VIP-Member Caveman_nige's Avatar
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    Vehicle : Vectra and a Signum

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    Year : 2006

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    yes it is worth doing, making more cold air available means you can burn more fuel which means more power. its only towards to the top of rev range where this really useful but better airflow throughout the rev range is always a bonus..

    I modified my airbox more than the how2 and published the details on here..

    http://www.vectra-c.com/forum/showth...monkeys/page20
    My old Signum, the animal; she now rests in pieces in several other members cars.. https://www.vectra-c.com/forum/garag...vehicle&id=200
    The wifes vec show car, started as a standard daily driver and ended up like this. https://www.vectra-c.com/forum/garag...vehicle&id=709



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