C3 Exhaust Question - NCRS Discussion Boards

C3 Exhaust Question

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  • don justham

    C3 Exhaust Question

    The AIM on my 1970 shows a sleeve or extension on the end of the exhaust pipe where it meets the manifold. What is the purpose of this and is it necessary? Thanks
  • Michael M.
    Expired
    • April 1, 2002
    • 149

    #2
    Re: C3 Exhaust Question

    Not for sure, but my best guess is that it's purpose is to protect the exhaust donut from direct exhaust gas exposure. I left mine out once and the donut did not last long.

    Comment

    • John H.
      Beyond Control Poster
      • December 1, 1997
      • 16513

      #3
      Re: C3 Exhaust Question

      It isolates the "donut" from direct exposure to the exhaust gases and supports the I.D. of the donut so it doesn't disintegrate and crumble.

      Comment

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