Thread: custom exhaust

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  1. #1 custom exhaust 
    GT Level Member GOINDEF's Avatar
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    I was wondering if anyone knew where i could find different sized y pipe sections.

    I'm looking at getting the Speed Daddy headers and then doing 2.5" all the way to the mufflers, instead of the factory 1 " something size.

    The only problem is that y section where it splits. i dont know where i can find a 2.5" y split so that i can continue the 2.5 from there to the mufflers.

    any answers?
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  2. #2 Re: custom exhaust 
    GTP Level Member dmahlikGT's Avatar
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    ZZP? hogan performance? i believe
    04 GTP-3.6 pulley, custom tuned, Intake, headers,thrush exhaust, al104 plugs, 180* stat, shift kit, flipped mounts

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  3. #3 Re: custom exhaust 
    The Blue One blueguy's Avatar
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    Your exhaust shop can't make one?
    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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  4. #4 Re: custom exhaust 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    stock exhaust from the cat back is already like 2.25in and 1 7/8 from the Y back, its not restrictive at all.

    SMGPFC Member #1
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  5. #5 Re: custom exhaust 
    GT Level Member GOINDEF's Avatar
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    i dont have an exhaust shop, i can get exhaust pipe.

    so from the y split back its not that restrictive?
    so if wont hurt if i do run 2.5" from the downpipe to the y section?
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  6. #6 Re: custom exhaust 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    the stock exhaust from the catback is not even an issue untill 350WHP+.

    just change your mufflers if you do anything.

    SMGPFC Member #1
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  7. #7 Re: custom exhaust 
    GT Level Member GOINDEF's Avatar
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    well i already have a 2.5" pipe going from the flex pipe to the y section with the factory manifolds

    so i figured i'd just do a single pice from the downpipe all the way to the mufflers
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  8. #8 Re: custom exhaust 
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    Quote Originally Posted by GOINDEF View Post
    well i already have a 2.5" pipe going from the flex pipe to the y section with the factory manifolds

    so i figured i'd just do a single pice from the downpipe all the way to the mufflers
    Try summit racing,jeggs and or jc whitney. I know they sell all kinds of exhaust parts and this way the inner diameter of your piping can stay true.

    Hope this helps



    MagnaFlow 10778 - MagnaFlow Y-Pipe Transitions - Overview - SummitRacing.com

    See. Doing it this way may mean a lil more work but,in the end you'll have it the way YOU want.
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  9. #9 Re: custom exhaust 
    GT Level Member GOINDEF's Avatar
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    k, thanks guys
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