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Exhaust bore size

james0808 Jul 9, 2007

  1. james0808

    james0808 Active Member

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    What sort of power can an exhaust of 70mm diameter handle before it becomes restrictive???
     
  2. mat20vt

    mat20vt Member

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    was running 300bhp on 2.75inch exhaust.
    almost got round to running 400+ till crash.
    had big high flow cat from jabbasport, and 3" downpipe
     
  3. james0808

    james0808 Active Member

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    Cheers fella,260 will be easy then.
     
  4. mat20vt

    mat20vt Member

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    yep easy.
     

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