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true dual question

This is a discussion on true dual question within the External Engine forums, part of the LSx Technical Help Section category; After i get my longtubes do i need a y pipe or an X-pipe if i want to go with ...

  1. #1
    z28pwrHecz Z28pwrHecz's Avatar
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    true dual question

    After i get my longtubes do i need a y pipe or an X-pipe if i want to go with true duals? also which one will give me a better sound... true duals or the regular way?

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    Pathelogical Liar BlackLT1Z28's Avatar
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    If you want true-duals, you'll need either and x-pipe or h-pipe. A y-pipe will give you the conventional exhaust with a single I-pipe, then a split.

    As far as sound, kinda depends on your taste as 'better'. Too many variables and setups out there to say. Also depends on which mufflers you go with. Check out www.ls1sounds.com

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    member since may 2000 nhraformula's Avatar
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    no y pipe with duals. you dont have to het an x pipe, you can just go straight pipes back.
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
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    you will have better results (rwhp) with an H-pipe or X-pipe.

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    z28pwrHecz Z28pwrHecz's Avatar
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    sounds good guys. that wont affect my inspection in any way will it if i go with true duals?... thanks for all the help.
    Last edited by Z28pwrHecz; 04-09-2007 at 08:38 AM.

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    Pathelogical Liar BlackLT1Z28's Avatar
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    It might if inspection requires you to have cats, you might not pass, unless you somehow clamp some cats on it somewhere.

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    Senior Member ss~zoso~ss's Avatar
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    Quote Originally Posted by jlashley2001ss View Post
    you will have better results (rwhp) with an H-pipe or X-pipe.
    yea, and it will sound better during accel and decel, it balances out the sound/pressure nicely

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    Pathelogical Liar BlackLT1Z28's Avatar
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    ^ and if you just go with straight pipes with no crossover, each pipe will sound like an individual 4 cylinder on both sides....just won't sound right.

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    The Bandit Wesman's Avatar
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    Quote Originally Posted by BlackLT1Z28 View Post
    ^ and if you just go with straight pipes with no crossover, each pipe will sound like an individual 4 cylinder on both sides....just won't sound right.
    Definitely not...

    Both my Dad's Corvette and my friends Nova have straight pipes on their cars (both are 350s) and neither sound anything like "2 inline 4 cylinders". They sound like old school Muscle cars, more raspy and lopey.

    An X or H pipe will just give you a slight increase in power and sound different. On an LS1, an X-pipe will probably sound the best.

  10. #10
    z28pwrHecz Z28pwrHecz's Avatar
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    will i also need the bullets if i go with an X-pipe or what else will i need? sorry guys i am pretty clue less on this

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