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  1. #1
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    Hey look, a mod for the N52, Headers

    Seems OBX is producing headers for the N52 motors. See, you guys have mods after all.

    Click here to enlarge

    Click here to enlarge

    Dyno on a 323i:

    Click here to enlarge

    Small vids:





    Not bad for $350.. will make you hate that motor a lot less: http://cgi.ebay.com/ebaymotors/OBX-H...ht_1338wt_1161
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  2. #2
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    I am not too sure about that dyno......all those gains for just a header system?

  3. #3
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    Click here to enlarge Originally Posted by 1fastm3 Click here to enlarge
    I am not too sure about that dyno......all those gains for just a header system?
    Absolutely, not at all out of line especially when eliminating a cat as well.
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  4. #4
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    Interesting, never realized that the stock exhaust was that much of a bottle neck!

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    can this be used for the 328?

  6. #6
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    Click here to enlarge Originally Posted by driftr Click here to enlarge
    can this be used for the 328?
    What year?
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  7. #7
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    Nice gains! I'd like to see and hear an opened up N52. I wonder if there is a way to mod valve-tronic for extra RPM and top end torque.

  8. #8
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    The biggest issue with these is that one member found out the pipes are not even at the bottom, causing the stock exhaust not to line up. So instead of cutting the header back and rewelding the flange, he modified the front pipe and cut the cat out....which now he can never go back to stock.

    I have a few customers interested in doing them, just coming up with another 250-300 to install and modify them is the tough part.

  9. #9
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    The biggest issue with these is that one member found out the pipes are not even at the bottom, causing the stock exhaust not to line up. So instead of cutting the header back and rewelding the flange, he modified the front pipe and cut the cat out....which now he can never go back to stock.

    I have a few customers interested in doing them, just coming up with another 250-300 to install and modify them is the tough part.

  10. #10
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    Oops double post..

  11. #11
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    Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
    The biggest issue with these is that one member found out the pipes are not even at the bottom, causing the stock exhaust not to line up. So instead of cutting the header back and rewelding the flange, he modified the front pipe and cut the cat out....which now he can never go back to stock.

    I have a few customers interested in doing them, just coming up with another 250-300 to install and modify them is the tough part.
    So these headers in particular you are saying don't line up?
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  12. #12
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    So these headers in particular you are saying don't line up?
    At the bottom where they bolt up to the stock exhaust...one pipe is slightly longer than the other. For someone who fabricates like me, it's am easy fix...but for someone at home doing this on their back it can turn into a real pita.

  13. #13
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    Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
    At the bottom where they bolt up to the stock exhaust...one pipe is slightly longer than the other. For someone who fabricates like me, it's am easy fix...but for someone at home doing this on their back it can turn into a real pita.
    Thanks, gotcha.
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    Are you sure you didnt get the front and back headers mixed up? Click here to enlarge
    Some people live long, meaningful lives.

    Other people eat shit and die.

    I'm not racist, I hate everybody equally; especially fat people.


    Click here to enlarge

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    BMW is really loving this whole split manifold thing....

  16. #16
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    Are you sure you didnt get the front and back headers mixed up? Click here to enlarge
    Bwahahah dont ask me i never installed them!! I was just going by what he said about them.

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    1 out of 1 members liked this post. Yes Reputation No
    Hey, I have a 2007 BMW Z4 3.0i, and the 2007 version has N52 engine, so do you think these headers would fit? or ?

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    Z4 has a alot of space. you and your family can move in and live there too.

  19. #19
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    Click here to enlarge Originally Posted by livenightlive Click here to enlarge
    Hey, I have a 2007 BMW Z4 3.0i, and the 2007 version has N52 engine, so do you think these headers would fit? or ?
    Likely yes.

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    ok so do you think it is worth it? and what if it doesnt fit can I return it back to them?

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    How much does it cost? not cheap IMO.

  22. #22
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    Click here to enlarge Originally Posted by livenightlive Click here to enlarge
    ok so do you think it is worth it? and what if it doesnt fit can I return it back to them?
    They are not a sponsor here so I'm not familiar with their product beyond the superficial.

    Do I think it is worth it? If you are trying to get more ponies, yes.

  23. #23
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    I would be ashamed to make an N52 this loud. People will think it's quick when its clearly not. I think those engines should just stay stock, unless you decide to supercharge then that is fine, I suppose. Still, you wouldn't be getting much power from it. Just my 2 cents..........

  24. #24
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    Click here to enlarge Originally Posted by leo985i Click here to enlarge
    I would be ashamed to make an N52 this loud. People will think it's quick when its clearly not. I think those engines should just stay stock, unless you decide to supercharge then that is fine, I suppose. Still, you wouldn't be getting much power from it. Just my 2 cents..........
    Don't even think there is a supercharger for them.

  25. #25
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    1 out of 1 members liked this post. Yes Reputation No
    yea, I messaged this company on ebay to make sure it would fit my z4 because it has n52 engine but they said it would not!

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