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Y pipe

This is a discussion on Y pipe within the External Engine forums, part of the LSx Technical Help Section category; i just got my exhaust in and i didnt get a y pipe installed. did i make a mistake on ...

  1. #1
    Member cobrakiller99's Avatar
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    1999 Trans am Ws6

    Y pipe

    i just got my exhaust in and i didnt get a y pipe installed. did i make a mistake on that? and if i did get it installed would it give me more horse power or make my computer run in limp mode? and i want to get around 400 in the motor.
    Last edited by cobrakiller99; 05-26-2008 at 07:44 PM. Reason: though of more things to write.

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    Dcdrummer LS1buckey's Avatar
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    1999 Pontiac Trans Am

    Do you have any other mods? A exhaust alone is not going to give you 400hp and I wouldn't say a y-pipe will give you more power it will allow your engine to breath better for sure which will make it perform better. I would go with an aftermarket Y just because the stock one sucks.

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    Senior Member INMY01TA's Avatar
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    A y pipe will not give you much if any horsepower. Now a long tube header/y pipe combo will. Skip changing just the y and get a good header/y pipe combo. In answer to your question no I don't think you made a mistake.

  4. #4
    Member cobrakiller99's Avatar
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    i was thinking, if i got another intake system then dyno tune it. would that get around 400 in the motor?

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    MANWHORE TEAM suede's Avatar
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    member since may 2000 nhraformula's Avatar
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    Quote Originally Posted by cobrakiller99 View Post
    i was thinking, if i got another intake system then dyno tune it. would that get around 400 in the motor?
    a y pipe on stock exhaust manifolds will give you no more than 5 h.p.
    an intake and tune will net you 15 hp at the most.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

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    O U 8 1 2 Spaz's Avatar
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    Quote Originally Posted by nhraformula View Post
    a y pipe on stock exhaust manifolds will give you no more than 5 h.p.
    an intake and tune will net you 15 hp at the most.
    :agree:

    intake, full exhaust and tune netted my friend a bit over 350rwhp and a little less tq...

  8. #8
    Senior Member splitfinger09's Avatar
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    Quote Originally Posted by Spaz View Post
    :agree:

    intake, full exhaust and tune netted my friend a bit over 350rwhp and a little less tq...
    LS6 intake on that setup?

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    O U 8 1 2 Spaz's Avatar
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    Quote Originally Posted by splitfinger09 View Post
    LS6 intake on that setup?
    no... he still has the stock ls1...

  10. #10
    MANWHORE TEAM suede's Avatar
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    Stickers, your gonna need alot of stickers, they are good for at least 7.5 horse each,
    Then you will need all royal purple fluids, alll through your drivetrain,
    Throw in an intake tornado, to get things swirling through there,
    Top it of with an Intake Temp. Chip and you should be about that 400 range.
    Then your gonna need a nice wing on the back to give some downforce for traction,
    Might even throw on some naaawwzz to get things movin too.

  11. #11
    Senior Member t-rock's Avatar
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    Quote Originally Posted by suede View Post
    Stickers, your gonna need alot of stickers, they are good for at least 7.5 horse each,
    Then you will need all royal purple fluids, alll through your drivetrain,
    Throw in an intake tornado, to get things swirling through there,
    Top it of with an Intake Temp. Chip and you should be about that 400 range.
    Then your gonna need a nice wing on the back to give some downforce for traction,
    Might even throw on some naaawwzz to get things movin too.
    you forgot a nice fart can, gawd..

  12. #12
    Approver of Threads SpecterGT260's Avatar
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    Quote Originally Posted by LS1buckey View Post
    Do you have any other mods? A exhaust alone is not going to give you 400hp and I wouldn't say a y-pipe will give you more power it will allow your engine to breath better for sure which will make it perform better. I would go with an aftermarket Y just because the stock one sucks.

    im guessing we have different working definitions of exhaust.

    to the OP, do you mean catback when you say you got exhaust installed? depending on what you want you probably did a good thing by waiting to get a new Ypipe.

    with longtube headers (which are the better power choice) you NEED a new ypipe anyways, so if u bought one with catback only ur just throwing money away.

    but a full exhaust (which to me means longtubes, ypipe, and catback) LS1 will typically dyno around 340rwhp, which is about 400 at the motor (which is the justification for my first statement )

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