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  1. #11
    Charter Member # 55 Charter Member Griff's Avatar
    My Boats:
    ..........32........... Active Thunder
    Join Date
    Oct 2000
    The CMI's on the 500efi's are not prone to failures like the 525EFI headers. Good flushing after each use should keep them in good condition.

  2. #12
    Platinum Member Platinum Member
    My Boats:
    1970 Wesco V-drive & 1974 CEE BEE Avenger jet boat
    Join Date
    Jan 2007
    Murrayville Georgia
    even with closed cooling the headers see salt water. switching to closed cooling makes no difference if a header fails or not.

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