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XJ 650 4KO

Discussion in 'XJ Technical Chat' started by chips, Mar 25, 2021.

  1. chips

    chips New Member

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    Hello all as XJ 650 4K0

    0riginal down pipes are obselete for ex 4K0 -14611-00 /or 01 FOR USA RJ MODELS EX PIPE 1
    how much difference is there between these pipes and 4H7-14611-00 Maxim pipes which are easier to come by

    Thanks

    Chips ( Steve)
     
    chips, Mar 25, 2021
    #1
  2. DaygloDavid

    DaygloDavid Active Member

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    What collector box/system are you trying to match the header pipes up to.

    The 4H7 pipes are designed to fit a 2 x 2-1 system and the 4K0 pipes a 4-2 system.

    The OD of the 4H7 pipes at the inlet to the 2 x 2-1 system is greater than that of the 28mm dia. 4K0 pipes to the 4-2 system.
     
    DaygloDavid, Mar 25, 2021
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