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Single cut outs vs Duels

This is a discussion on Single cut outs vs Duels within the External Engine forums, part of the LSx Technical Help Section category; I see the obvious differences when installed but is there really much of a difference performance wise? I was just ...

  1. #1
    Senior Member Lunatikgixxer's Avatar
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    Single cut outs vs Duels

    I see the obvious differences when installed but is there really much of a difference performance wise? I was just thinking about a single E cut out but if the duels are worth the money id almost be willing to buy those.

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    Slow'er'Ass Mr. Luos's Avatar
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    Will likely lose power with the duals.

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    Member devildogws6's Avatar
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    really?

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    Member devildogws6's Avatar
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    even with cam ls6 heads and fast 90?

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by devildogws6 View Post
    even with cam ls6 heads and fast 90?
    More than likely.

    Drops my power until about 4500RPM's.

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    Member devildogws6's Avatar
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    hmmm cuz i was going to do that how much power cuz im not to worried about it unless its alot if its only ten im not worried about it

    sorry didnt mean to steall thead

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    Senior Member Lunatikgixxer's Avatar
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    lol its ok u didnt, i didnt know this either. So for the cheaper single one its better? thats crazy! lol

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by devildogws6 View Post
    hmmm cuz i was going to do that how much power cuz im not to worried about it unless its alot if its only ten im not worried about it

    sorry didnt mean to steall thead
    I think mine was like 20HP until about 4000 then it started catching up.
    But I can tell a difference in the lower RPM's with them capped instead of open.


    Hard for me to say...I only have my car to compare open/closed numbers. And mine isn't exactly near stock by any means.

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    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    Will likely lose power with the duals.
    But don't you gain higher end power and torque, well at least if you have an x-pipe, over your normal catback with a y pipe and faster 1/4 mile?

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    Slow'er'Ass Mr. Luos's Avatar
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    Quote Originally Posted by 98TransAmWs-6 View Post
    But don't you gain higher end power and torque, well at least if you have an x-pipe, over your normal catback with a y pipe and faster 1/4 mile?
    We are talking about dual cutouts....not true duals.
    Sorry for the confusion.

  11. #11
    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Mr. Luos View Post
    We are talking about dual cutouts....not true duals.
    Sorry for the confusion.
    OH oops I didn't see that part

  12. #12
    Member devildogws6's Avatar
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    ahh ok i think i can make that sacrifice as i only want a quick street car lol

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