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Thread: Front pre-cat on 3.2 GSI

  1. #1
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    Default Front pre-cat on 3.2 GSI

    Anyone fitted the front pre-cat on a GSI? they seem a real pig to do, not much room for access, any advise would be greatful. I fitted a new front pipe / CAT yesterday and i heard a slight blow from the pre-cat area which seemed to go away after warmed up so im thinking it's a hairline crack.

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    Regular Member Jaspa's Avatar
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    Vehicle : Vectra

    Trim : GSi

    Engine : Z32SE

    Year : 53

    Mileage : 57,000

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    they are just 2 bolts where the downpipe meets the precat, its just abit fiddly around the head because you have to get to the flange bolts behind the structure itself

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    Quote Originally Posted by Jaspa View Post
    they are just 2 bolts where the downpipe meets the precat, its just abit fiddly around the head because you have to get to the flange bolts behind the structure itself
    It's the pre-cat itself that needs doing mate, iirc it's about 8 bolts onto the head.

    One of these:

    http://www.ebay.co.uk/itm/1807174330...84.m1423.l2649

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