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Thread: 2.2 SRi single output to twin output (direct) conversion

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    confused 2.2 SRi single output to twin output (direct) conversion

    Hi everybody,

    I'm fairly new to this forum but I was wondering if anyone could help me out with something. I'm going to view a car tomorrow, its a Vectra-C 2003 2.2 SRi but it has one exhaust at the back.

    My question is, if I do buy it, could I modify/convert it to a twin exhaust like th 2.2. direct SRI? Could anybody recommend me any company that can do that for a good price + increase in performance?

    Any help would be much appreciated.

    Kindest regards,

    Waqas (an absolute newbie)

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    Regular Member mhvcbv's Avatar
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    hi m8
    yes you can, i did my little 1.8 into dual sri and now got the irmy quad.

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    Full Member Big Sig's Avatar
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    You can use the std vauxhall stuff or go stainless for a nicer sound
    Now I need a turbo to keep up!

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    cheers, mhvcbv, much appreciated.

    Big Sig, whats the std vauxhall stuff?

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    Regular Member SRIRob's Avatar
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    Hi fella yes its no problem although you will not gain any power from the twin set up it does look so much better Ive only just done mine

    Rear valance new from Vaux dealer £54.00
    Read RHS back box Bought from a fellow club member £70.00 Brand new
    Pipecraft in Basildon for the y piece conversion and fitting £80.00 01268285535 Dean does a fantastic job great guy
    heres a picture of mine done



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    Cheers, Rob....

    that looks like a mint job.

    Quick question, if i did want a twi output exhaust system which gave me bhp increase, what kind of set up and parts should i be looking for?

    thanks.


    waqas

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    Regular Member rushy's Avatar
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    I've done the exact conversion your on about mate, 2.2 single to double. All I did was get a 2.0T twin system, cut it before the Y and clamp it over my existing centre section. Bobs your uncle, job done, cost me £60.

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    Regular Member SRIRob's Avatar
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    Would think you would need to go for 2 custom made non restrictive boxes bigger pipe work and a decat speak to dean at pipecraft he will design something for you

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    Regular Member rushy's Avatar
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    Quote Originally Posted by SRIRob View Post
    Would think you would need to go for 2 custom made non restrictive boxes bigger pipe work and a decat speak to dean at pipecraft he will design something for you
    Not really a good idea on a n/a petrol, you still need back pressure, not a problem on a Turbo though, plus a decat on a 2.2 will just send the car into limp.

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