Materials to Maintain Your ZHP IIIII Hand Protection IIIII Tools to Maintain Your ZHP
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  1. #1
    Join Date
    Jan 2013
    Location
    Tulsa, OK
    Posts
    95

    stock ZHP vs stock M3 headers...

    so is there a difference? would they even fit ZHP sedan? and if so, is it worth it to upgrade to oem m3 headers?

    I've read that the power is the heads of the S54.. anyhow, found some headers on CL locally, so just curious..
    2003 ///ZHP Sedan -Silver Grau - Alcantara - 6MT - 3.46 diff - Style 197's

  2. #2
    Join Date
    Mar 2013
    Location
    Scranton, PA
    Posts
    139
    M3 headers have a completely different flange design. They will not fit anything other than an S54.
    2003 ///M3 6spd Jet Black/Cinnamon (I loan valve adjustment tools! PM me...)

  3. #3
    You're gonna need some serious TIG skills to mate an S54 header to a M54

  4. #4
    Join Date
    Jan 2013
    Location
    Tulsa, OK
    Posts
    95
    answers my question. thanks.
    2003 ///ZHP Sedan -Silver Grau - Alcantara - 6MT - 3.46 diff - Style 197's

  5. #5
    Join Date
    Jan 1970
    Location
    Redwood City, CA
    Posts
    767
    S54 headers are equivalent to M54 stock headers for their motor also. Both get 10-20rwhp when changed to de-catted, better flowing designs.
    - Derek

  6. #6
    nike001 Guest
    Quote Originally Posted by zhp43867 View Post
    S54 headers are equivalent to M54 stock headers for their motor also. Both get 10-20rwhp when changed to de-catted, better flowing designs.
    lol duhh



    It would be a worthy upgrade but I'm not one for having a smelly car, especially when our cars are still pretty slow even after this mod

  7. #7
    Join Date
    Mar 2011
    Location
    Philadelphia
    Posts
    1,079
    Quote Originally Posted by zhp43867 View Post
    S54 headers are equivalent to M54 stock headers for their motor also. Both get 10-20rwhp when changed to de-catted, better flowing designs.
    S54 US headers are still equal length unlike M54 headers.

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