M30 Exhaust Flange from Header to Downpipe

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  • brandn
    Noobie
    • Feb 2017
    • 23

    #1

    M30 Exhaust Flange from Header to Downpipe

    Hello, so I have a 1987 e30 with an m30 swap from an '89 e28, and I'm trying to get it to pass the dreaded California BAR bs. Pretty much the only thing I really need to do is weld up an exhaust, only problem is I cannot find the correct flange for the life of me. I feel like I've searched everywhere, and I've ordered and returned over 5 different types of flanges and none of them fit.

    I need the flange that connects the header to the exhaust downpipe that leads to the cat. The headers I have are the ones with the 3-bolt 2-inch diameter outlet. Any help as to where I can find these things and I'll love you forever. Thanks!

    Also, I have a gasket, I just can't find the flange itself.
  • brandn
    Noobie
    • Feb 2017
    • 23

    #2
    just a little bump

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    • wannaBMthree
      Mod Crazy
      • Apr 2007
      • 601

      #3
      Originally posted by brandn
      just a little bump
      flex pipe? That's what my exhaust shop suggested.

      Comment

      • brandn
        Noobie
        • Feb 2017
        • 23

        #4
        Originally posted by wannaBMthree
        flex pipe? That's what my exhaust shop suggested.
        no, thats not it. I'm looking for the actual OME flange piece, not any piping. I ordered this on ebay :



        crossing my fingers it will fit, but I don't know.

        Comment

        • brandn
          Noobie
          • Feb 2017
          • 23

          #5
          So the flange I ordered from ebay (the one previously pictured) didn't fit, and I still can't find the right flange that does. I have the gaskets, which I'll post a pic of, I just can't find the actual flange for the life of me. Anybody know where I can get them??

          Last edited by brandn; 08-11-2017, 02:48 PM. Reason: photo size

          Comment

          • ThatOneEuroE30
            R3V OG
            • Dec 2013
            • 8626

            #6
            Id suggest using b35 headers and down pipes they fit better and have the 2 bolts flange


            1989 325is l 1984 euro 320i l 1970 2002 Racecar
            1991 318i 4dr slick top


            Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
            Vintage race car revival (2002 content)
            Mtech 2 turbo restoration
            Brilliantrot slick top "build"

            Comment

            • Andy.B
              E30 Mastermind
              • Sep 2011
              • 1650

              #7
              Get a used e28 downpipe assembly and chop the flanges off?

              Comment

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