1980 1100 4 into 1 on my 80 1000?

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  • 80gs1000e
    • Feb 2026

    #1

    1980 1100 4 into 1 on my 80 1000?

    I have a 1980 1100 4 into 1 (I believe Mac pipe). Will it fit on my 80 gs1000?
  • Jethro
    Forum LongTimer
    Charter Member
    GSResource Superstar
    Past Site Supporter
    • May 2002
    • 17888
    • The only Henniker on earth

    #2
    Is the 1100 an L or E model? If it's an L, maybe it will fit. I don't think a pipe from an 1100E will fit the 1000 at all.
    Currently bikeless
    '81 GS 1100EX - "Peace, by superior fire power."
    '06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."

    I ride, therefore I am.... constantly buying new tires.

    "Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt

    Comment

    • 80gs1000e

      #3
      I think the pipe is off an 1100e, 1980.

      Comment

      • Jethro
        Forum LongTimer
        Charter Member
        GSResource Superstar
        Past Site Supporter
        • May 2002
        • 17888
        • The only Henniker on earth

        #4
        I think the 80 1100E's are a different head (16v). The 1000's are all 8v, yes? It may work, but not likely. Actually, the L model pipes might not be long enough either (from manifold to second bend).
        Currently bikeless
        '81 GS 1100EX - "Peace, by superior fire power."
        '06 FZ1000 - "What we are dealing with here, is a COMPLETE lack of respect for the law."

        I ride, therefore I am.... constantly buying new tires.

        "Tell me what kind of an accident you are going to have, and I will tell you which helmet to wear." - Harry Hurt

        Comment

        • first timer
          Forum Sage
          • Aug 2002
          • 3429
          • Tucson, Arizona

          #5
          i have teh exhaust off my 1k right now so you better hurry up and we can see how it fit on the bike before i put my exhaust back on

          -ryan
          78 GS1000 Yosh replica racer project, 82 Kat 1000, 10 990 ADV-R, Some dirt bikes

          Comment

          • rphillips
            Forum Guru
            Past Site Supporter
            Super Site Supporter
            • Jun 2005
            • 7612
            • Norene TN

            #6
            It will fit in the head, but will not fit the rest of the bike properly.
            1983 GS1100E, 1983 CB1100F, 1991 GSX1100G, 1996 Kaw. ZL600 Eliminator, 1999 Bandit 1200S, 2005 Bandit 1200S, 2000 Kaw. ZRX 1100

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            • 80gs1000e

              #7
              Originally posted by first timer
              i have teh exhaust off my 1k right now so you better hurry up and we can see how it fit on the bike before i put my exhaust back on

              -ryan
              Ahhhhh....this weekend hopefully. I'm bringing my bike over Sunday! 8)

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