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Author Topic: 2.6 manifolds on a 2.5  (Read 628 times)

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JamesV6CDX

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2.6 manifolds on a 2.5
« on: 20 October 2009, 19:52:15 »
Please can somone confirm, if the 2.6 manifolds are a direct fit to a 2.5 (obviously the SAI will be gone)

I know they'll fit the heads OK, but will the 2.5 downpipes/cats fit?

Lastly - if doing some porting and 3.0 cams in a 2.5 - is there any value to also fitting the larger 2.6 manifold?

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Marks DTM Calib

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Re: 2.6 manifolds on a 2.5
« Reply #1 on: 20 October 2009, 20:24:09 »
they do fit and they flow more freely.

You do need to cut the flange that the front pipe gasket sits around down by about 5mm
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JamesV6CDX

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Re: 2.6 manifolds on a 2.5
« Reply #2 on: 20 October 2009, 21:11:59 »
Cheers Mark

Do you think the improvements will be worthwhile?
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JamesV6CDX

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Re: 2.6 manifolds on a 2.5
« Reply #3 on: 20 October 2009, 21:12:20 »
Oh - and is it necessary to port the exhaust outlets on the head, as well as the inlets?
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