Anyone ported the stock exhaust manifolds?

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Sep 5, 2012 | 01:50 PM

XJR-99

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From: Europe

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?

Sep 5, 2012 | 04:36 PM

Thundercat

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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.

Sep 6, 2012 | 02:24 AM

XJR-99

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Quote:

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.

Sep 6, 2012 | 03:24 AM

JKo

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From: Finland

Quote:

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

Sep 6, 2012 | 03:53 AM

XJR-99

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Quote:

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

Sep 11, 2012 | 11:07 AM

Cambo

Joined: Jan 2011

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From: Sydney, Australia

Have a look here https://www.jaguarforums.com/forum/g...-2l-s-c-80560/

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