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Thread: Anyone running the B&D drivers side exhaust manifold yet?

  1. #1
    Join Date
    Oct 2002
    Location
    USA
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    1,248

    Question Anyone running the B&D drivers side exhaust manifold yet?

    Just wondering how much difference it makes.
    0000000

  2. #2
    Join Date
    Mar 2000
    Location
    Loyal WI US
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    10,792

    Default

    I modified mine a long time ago, but now so when this manifold You won't see or feel the difference, but the restriction is so obvious that it just makes sense...
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  3. #3
    Join Date
    Oct 2002
    Location
    USA
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    1,248

    Default

    Thanks John, I am getting ready to order some gauges from you, I guess I'll get the manifold also. I won't have to drill the other one that way. I would think that the EGT's coming from the left side should be lower. Or at least read the same as the right side.
    0000000

  4. #4
    Join Date
    Jan 2003
    Location
    maui, hawaii
    Posts
    93

    Default

    I would appreciate your assessment of the BD manifold after you install it (e.g. quiet and noticable difference).
    1) '03 GMC 2500HD Dmax/Ali Ext/Short 4x4; 4" exhaust, egt and boost gauges; exhaust brake; Bilsteins; BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Mag-Hytec differential cover; Suncoast V transmission w/deep oil sump
    2) '07 Classic GMC 2500HD Dmax/Ali Ext/Short 4x4'; Bilsteins, Silastic shackles, BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Federico sway bars; Dipricol boost and egt gauges; Transgo Jr,, Mag-Hytec differential and transmission pan

  5. #5
    Join Date
    Oct 2002
    Location
    USA
    Posts
    1,248

    Thumbs up

    Hi Conway, I will let you know. It will be after Christmas before I get R Done.
    Then I hope the new tunes are ready also.
    0000000

  6. #6
    Join Date
    Mar 2006
    Posts
    39

    Default

    R&R is easy. It has a port in it so no more worry about cracking the drilled manifold. I didn't see or feel a difference, but like John said, take a look and you will see the benefit. It is a cheap, easy, worthwhile mod. I bought all new gaskets, but some get away with reusing them.
    Twin Turbo LLY

    EFI Live Tuned by Me
    11.8 @ 118+ 1/4 on #2 only

  7. #7
    Join Date
    Oct 2002
    Location
    USA
    Posts
    1,248

    Question

    Thanks, I would really like to hear if anyone is running one with egt gauges in both manifolds. I had gauges on both manifolds of our 02, and the left side ran a little hotter, about 100 degrees more under load and climbed faster under load. If I was cruising and not pulling hard they would read the same.
    I figured the higher reading was due to the restriction on the left.
    0000000

  8. #8
    Join Date
    Jan 2003
    Location
    maui, hawaii
    Posts
    93

    Default

    Bobo:
    Any increase in sound?
    1) '03 GMC 2500HD Dmax/Ali Ext/Short 4x4; 4" exhaust, egt and boost gauges; exhaust brake; Bilsteins; BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Mag-Hytec differential cover; Suncoast V transmission w/deep oil sump
    2) '07 Classic GMC 2500HD Dmax/Ali Ext/Short 4x4'; Bilsteins, Silastic shackles, BD exhaust manifold; Oil Guard bypass; Lubrication pre oem fuel filter; Tekonsha Prodigy; Federico sway bars; Dipricol boost and egt gauges; Transgo Jr,, Mag-Hytec differential and transmission pan

  9. #9
    Join Date
    Mar 2006
    Posts
    39

    Default

    No increase in sound on my LLY.
    Twin Turbo LLY

    EFI Live Tuned by Me
    11.8 @ 118+ 1/4 on #2 only

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