Exhaust - 4 into 1

Discussion in '1st & 2nd Generation 1983-1989' started by Rune, Jan 16, 2016.

  1. Rune

    Rune New Member

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    Planning to build a 4 into 1 exhaust system. What will be the correct inlet diameter of the silencer?

    I have one megaphone silencer with 51mm inlet, and maybe this is big enough... ?

    Br
    Rune
     
  2. safetypro10

    safetypro10 New Member

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    I have a 93 VFR750F with one can. Inlet size is 76mm. 51mm may be a bit small.

    Larry
     
  3. Rune

    Rune New Member

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    Thanks for info. Maby someone have the pipe dimensions of an type "old kerker system"?
     
  4. Rune

    Rune New Member

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    One more thing, is it the same 4-2-1 headers/manifold used on 1986/1987 and 1988/1989 ?
     
  5. artee

    artee New Member

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    The slip on on my bike is around two inches or 50mm.

    Roger
     
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