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Thread: Vectra 2.2 Pre Cat and centre box

  1. #1
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    Default Vectra 2.2 Pre Cat and centre box

    Hi all does the 2.2i Direct have a precat installed and can it be removed and a straight pipe put in place? Also im planning on removing the centre box and replacing with a straight pipe is this also ok to do and does it make the car sound better as the standard exhaust is quite and would like more noise without a big cost of replacing full system?

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    Default

    i think the direct version has the cat as part of the manifold, no pre cat like older 2.2 engines.

    was thinking about your straight through middle section, sportex do one for the vec although it is about 90 quid which i thought was a bit expensive for a piece of exhaust pipe with no boxes on it!

  3. #3
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

    Default

    As deg said mate, all 2.2's in the vec have the main and only cat in the manifold. If you want to mess with cats on 2.2 Vec C's you need an aftermarket manifold or vec B manifold, get a custom down pipe and flexi the put a sports cat underneath.

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    Default

    think ill just leave the cat alone and replace the middle section and box with a straight pipe.

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