XJ XJ8 / XJR ( X308 ) 1997 - 2003

Anyone ported the stock exhaust manifolds?

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Old Sep 5, 2012 | 01:50 PM
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Default Anyone ported the stock exhaust manifolds?

I know some guys have ported stock exhaust manifolds of 6cyl XJRs, but how about X308 4.0 V8?
 
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Old Sep 5, 2012 | 04:36 PM
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I haven't heard of anyone doing it. Subscribe to Viapa's thread about headers as there will be dyno numbers coming this week.
 
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Old Sep 6, 2012 | 02:24 AM
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Originally Posted by Thundercat
I haven't heard of anyone doing it. Subscribe to Viapa's thread about headers as there will be dyno numbers coming this week.
Such non-orginal headers do not pass the annual inspection here, if found.
 
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Old Sep 6, 2012 | 03:24 AM
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Originally Posted by XJR-99
Such non-orginal headers do not pass the annual inspection here, if found.
AFAIK a larger intercooler radiator does not pass either
 
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Old Sep 6, 2012 | 03:53 AM
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Originally Posted by JKo
AFAIK a larger intercooler radiator does not pass either
That's mostly invisible and nothing to do with extra power - at least with Eaton
 
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Old Sep 11, 2012 | 11:07 AM
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Have a look here https://www.jaguarforums.com/forum/g...-2l-s-c-80560/
 
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