Porting?????

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  • cp325i
    Noobie
    • Jan 2005
    • 1
    #1

    Porting?????

    Does anybody know how to go about porting and polishing the head and air in-take manifold etc.
    Tags: None
    • surebimmer
      E30 Modder
      • Jan 2004
      • 978
      #2
      Extrude Hone - Deburring - Polishing - Finishing metal parts
      http://www.extrudehone.com/
      Extrude Hone offers Metal Part Finishing with machines, Contract Shop Services, Abrasive Flow Machining, Electrochemical Machining and Thermal Deburring.

        Comment

        • nando
          Moderator
          • Nov 2003
          • 34827
          #3
          extrude honed M20 intakes are a complete waste of money! save your $500 and buy a MAF conversion kit instead.
          Build thread

          Bimmerlabs

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