CX exhaust manifold question
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  1. #1
    Tadpole kotaib's Avatar
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    Default CX exhaust manifold question

    I would be grateful if anybody could shed some light on a small mystery. I am replacing the exhaust manifold gasket on my CX 25GTI. I find there is a discrepancy in the design of the manifolds shown on the CX-Basis website and the one I have (see attached images). I am wondering what these additional components are/do and if they are necessary. Thanks in advance.

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  2. #2
    Fellow Frogger
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    Air injection / EGR I would expect. It's part of the emission system and there is often a one way valve for each cylinder. Many cars will have had some of the emission systems disabled and the pipes closed off near the manifold.

  3. #3
    Real cars have hydraulics DoubleChevron's Avatar
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    It'll probably be the swedish system. I've only seen the early version on the cars I've looked at (ie: a plate between the head and manifold) out here. Maybe the '85 aussie cars have that manifold

    seeya,
    Shane L.
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    Yay ... No Slugomatics


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  4. #4
    Member Chimbu's Avatar
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    Without upsetting the emission police-

    Rip off the EGR system from front of manifold;
    Weld up hole;
    Bin EGR system.

    I have 1985 2.5 GTI and did this last year. Works a treat.
    CX basis kit is fine.
    Keith

  5. #5
    UFO
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    CitroŽn Tragic UFO's Avatar
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    It may be possible that one day you will be looking under the bonnet and the EGR stuff will just suddenly fall off, home made blanking plates appear coated with manifold gasket paste and bolt themselves onto the manifold in the appropriate places.

    If that does happen you may also find that the car runs a WHOLE lot better.
    Craig K
    2009 C5 HDi Exclusive

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