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 Post subject: Header Pipes
PostPosted: Sat May 23, 2009 8:47 pm 
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Joined: Mon May 18, 2009 3:12 pm
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Hey everyone!
Just a quickie ... Can any one tell me if the header pipes on an XB9 are the same diameter as an XB12. I understand that European models have recently changed but are the two models different.


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 Post subject: Re: Header Pipes
PostPosted: Sat May 23, 2009 10:10 pm 
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... and if they are as I believe smaller is there any advantage putting the larger bore pipes on my 9


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 Post subject: Re: Header Pipes
PostPosted: Sun May 24, 2009 9:03 pm 
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Joined: Wed May 06, 2009 7:45 pm
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Location: Chesham, Bucks
No, the 9 pipes have a narrow diameter to the 12 ( IIRC 42mm on the 9 and 45 mm on the 12 - but not sure ).

I don't think that there is any advantage to using 12 headers on a 9 unless the engine has had extensive modifications - but then again that is only my opinion.

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 Post subject: Re: Header Pipes
PostPosted: Mon May 25, 2009 9:22 am 
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Joined: Wed May 06, 2009 7:54 pm
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Location: Historic Basingstoke
IIRC there was a test posted on the old forum that showed the key to an XB9 was a well-designed end can


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 Post subject: Re: Header Pipes
PostPosted: Wed May 27, 2009 1:35 pm 
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Thanks everyone!


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