Thread: What gasket for Rear Manifold/Downpipe block-off/wastegate mount

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  1. #1 What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    Hey Guys,

    Do you know what gasket to use for mounting the wastegate on the CT kit on the rear manifold? I imagine one for a block off plate would be fine too. The only one at the parts store has ridges on both sides that go into the manifold and downpipe, but the plate doesn't have that so it's just trying to crush it instead which I would imagine makes a poor seal.

    Thanks!
    1998 Grand Prix GTP aka The Family Sedan
    CAI, 1.8 rockers, U-bend delete, 3.4 pulley, tuned by me
    1999 Turbo Grand Prix
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  2. #2 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
    GrandPrix Junkie ItHurtz's Avatar
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    RA
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    61310

    If thats what your talking about its the oem manifold to pipe
    2000 GTPT Sold-brandonhall10 built trans
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  3. #3 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    Is that what you're using? That's what the part store had, but it's not flat, it's rolled around the inside edges.
    1998 Grand Prix GTP aka The Family Sedan
    CAI, 1.8 rockers, U-bend delete, 3.4 pulley, tuned by me
    1999 Turbo Grand Prix
    L36 turbo build in progress
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  4. #4 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
    GrandPrix Junkie ItHurtz's Avatar
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    When I bought the ct kit used it had that gasket, I bought the one I linked last year to replace the old beat up one.

    As far as I am aware its just the stock gasket inbetween the wastegate perch and rear mani, nobody sells anything special or different.

    You can see the gasket when I first got the kit, has the metal ring on the inside
    Untitled by Corey S, on Flickr
    2000 GTPT Sold-brandonhall10 built trans
    2009 Challenger SRT8
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  6. #5 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    Ok, here I was assuming we needed a flat gasket to get a good seal, but if that's whats working for you then that's what I'll use.
    1998 Grand Prix GTP aka The Family Sedan
    CAI, 1.8 rockers, U-bend delete, 3.4 pulley, tuned by me
    1999 Turbo Grand Prix
    L36 turbo build in progress
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  7. #6 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    All work out good?
    2000 GTPT Sold-brandonhall10 built trans
    2009 Challenger SRT8
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  8. #7 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    Yes, I ended up getting a walker gasket as that was all the parts store had, but it was basically the same thing.
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  9. #8 Re: What gasket for Rear Manifold/Downpipe block-off/wastegate mount 
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    Thanks!
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