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Thread: 2nd and 3rd gen exhaust manifold comparison

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    2nd and 3rd gen exhaust manifold comparison

    Just wanted to know your thoughts on comparing 2nd gen manifolds vs 3 gens. Was it an upgrade downgrade or lateral move when dodge moved the turbo from the center to the rear??? Also if having the turbo in the center is better is their any gains for the 3rd gen and are their any major modifications involved with the swap.


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    Old ... But Still Here ! AnOldBiker's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    1st off ... to the forum @sumptonjackson

    I really don't see the advantage of it being in the center or on the upper portion of the engine compartment, unless it was for the layout of the 3rd gen engine parts and accessories for the engineers. Being on the upper porting of the compartment, it is an advantage of intake accessories and designs versus the 3rd gen. But not much more.



    Jim


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    Dude's Diesel Performance's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    Agreed!^^^^

    And welcome!!!!

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    Matthew 6:9-13, 2 Corinthians 5:20

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    Cummins7's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    So when everyone states that their EGTs go way down when they do a second gen manifold swap, is that just from the differences in the turbo setup instead of the manifold?

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    Dude's Diesel Performance's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    It's both really. It improves airflow quite a bit and most people see egt differences between 250-400 degrees cooler depending on turbo set up and tuning ya know?

    The second gen swap gets you a mass improvement on airflow.

    Reduces drive pressure.

    Gets you a decent variety of turbo to choose from so you can make more power.


    Is alot of work but well worth it in my opinion!

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  10. Top Of Page | #6
    HKBIGDADDYDIESELDAN's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    Welcome to the family bud

    2012 Cummins Ram 6.7L MM3 tuner full 5" Flo Pro TBE Exhaust LWBCC 4x4 Mag Hytec Double Deep Transmission Pan , Mag Hytec Rear Diff Cover
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    Re: 2nd and 3rd gen exhaust manifold comparison

    Quote Originally Posted by Dude's Diesel Performance View Post
    It's both really. It improves airflow quite a bit and most people see egt differences between 250-400 degrees cooler depending on turbo set up and tuning ya know?

    The second gen swap gets you a mass improvement on airflow.

    Reduces drive pressure.

    Gets you a decent variety of turbo to choose from so you can make more power.


    Is alot of work but well worth it in my opinion!

    Sent from my SM-G955U using Tapatalk
    This is what was said on a YouTube video which is the main reason I posted this question in the first place. Seems like an inexpensive way to gain airflow besides the very large k&n filter I have now


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  13. Top Of Page | #8
    Dude's Diesel Performance's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    Yes sir most definitely! You won't regret it later on down the line either.

    Sent from my SM-G955U using Tapatalk

    Matthew 6:9-13, 2 Corinthians 5:20

    See what we are up to on:
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  15. Top Of Page | #9
    Basic Member splash4cash's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    I have just found out that my truck has this Mod. No big deal right... well actually now i can't pass the smog visual... does anyone know if there are CA CARB legal aftermarket intakes that will fit a 3rd gen with this Mod. The AFE i ordered for a 03-07 wont fit, now i know why.


  16. Top Of Page | #10
    Capt543's Avatar

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    Re: 2nd and 3rd gen exhaust manifold comparison

    What are the specs for visual carb in your state?


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