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Thread: De-cat pipe for a Vectra 2.0T

  1. #1
    Regular Member Stacker's Avatar
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    Default De-cat pipe for a Vectra 2.0T

    Hi everyone,

    Not been on for a while.

    My 2.0T runs out of warranty next month & I was wondering if any other owners have fitted a de-cat pipe to theirs & was there any noticable difference?

    The reason I ask is mine gets used on quite a lot of short journeys (2-5 miles) when I'm not driving it & my previous 2.5v6 clogged it's cat, wrecked the ERG valve & cracked & inlet manifold because of this.

    So a de-cat pipe may save me a lot of money & the long run & maybe give me a small boost as a bonus.

    Your thoughts please if you can.

  2. #2
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

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    If its anything like the 2.2 they de cating it is a big no no. The 2.5 V6 through to the 3.2 V6 is easily de catted as there is no O2 sensor after the cat but on the 2.2 and quite possibly the 2.0T there is, if so the car will just throw a huge fit and go into limp. A 100 cell sports cat will just get you by but you will constantly have to clear the EML, the 200 cell sports cat is better.

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    Regular Member Stacker's Avatar
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    Quote Originally Posted by rushy View Post
    If its anything like the 2.2 they de cating it is a big no no. The 2.5 V6 through to the 3.2 V6 is easily de catted as there is no O2 sensor after the cat but on the 2.2 and quite possibly the 2.0T there is, if so the car will just throw a huge fit and go into limp. A 100 cell sports cat will just get you by but you will constantly have to clear the EML, the 200 cell sports cat is better.
    Thanks.
    What is the EML?
    Where can I get a 100/200 cell sports cat & will I see any driveablility difference?

  4. #4
    Regular Member exitusletalis's Avatar
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    I've got a highflow downpipe and sportscat for the 2.0t for sale. I bought it here from sberrow, but it didnt fit my BSR catback system so I'm selling it cheap. pm for details.

  5. #5
    Regular Member rushy's Avatar
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    Engine : Z22SE (2.2 Petrol)

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    Quote Originally Posted by Stacker View Post
    Thanks.
    What is the EML?
    Where can I get a 100/200 cell sports cat & will I see any driveablility difference?
    Engine Management Light

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    Regular Member Super T's Avatar
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    Get one from BSR!!it will cost but you but the 200 cell cat has all the right holes/fittings for the o2 sensors x2 and the egt sensorHTH

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    Quote Originally Posted by exitusletalis View Post
    I've got a highflow downpipe and sportscat for the 2.0t for sale. I bought it here from sberrow, but it didnt fit my BSR catback system so I'm selling it cheap. pm for details.
    hOW MUSH DO YOU WANT FOR IT, I HAVE A 2.0l TURBO 100 SPECIAL EDITION, WILL IT FIT?

  8. #8
    Regular Member rushy's Avatar
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    Engine : Z22SE (2.2 Petrol)

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    Quote Originally Posted by ADZWOODS48 View Post
    I HAVE A 2.0l TURBO 100 SPECIAL EDITION, WILL IT FIT?
    Sure will

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