Thread: 1998 l36 gpgt zzp downpipe install

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  1. #1 1998 l36 gpgt zzp downpipe install 
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    I just bought my zzp downpipe on ebay. Couple of questions.
    1. Do I need to get new gaskets for the intlet of the downpipe?
    2. Should I header wrap the downpipe section?
    Thx again for everyone's input in my last post. Im glad the GP movement is alive!
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  2. #2 Re: 1998 l36 gpgt zzp downpipe install 
    GTX Level Member nos4blood70's Avatar
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    No need to header wrap it.
    -Carl
    "Penelope" - 145k Miles 2003 Bonneville SLE


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  3. #3 Re: 1998 l36 gpgt zzp downpipe install 
    GTX Level Member SnowTh1ef's Avatar
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    Most of the time you can reuse the oem gasket. its a pretty robust metal gasket.
    can't think of many reasons where its worth it to wrap the downpipe. I wouldn't.
    04 GTP -HAI, 1.9 rockers.
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  4. #4 Re: 1998 l36 gpgt zzp downpipe install 
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    Thx again everyone! !
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  5. #5 Re: 1998 l36 gpgt zzp downpipe install 
    The Blue One blueguy's Avatar
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    The top one you can re-use...done it MANY times.

    It's the back of the DP...to the catback that needs scraped off, cleaned, and replaced.

    RTV is always good to add to the mixture.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
    '12 Buick Regal Turbo - ZZP CAI/20% Tint/HID's
    '89 Ford Mustang LX Notchback - LM7 5.3, 4L80, 9", HX40
    '04 Chevrolet Corvette MRM A4/LS1 - TSP LT's, 3"O/R X, AFE S2 CAI
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