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Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

will an STi intake manifold fit on a 2006 WRX TR?

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Old 06-26-2007, 03:56 AM
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will an STi intake manifold fit on a 2006 WRX TR?
just curious if it will bolt right up or will some modifications have to be done?


sorry if this question is
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Old 06-26-2007, 12:00 PM
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It should they are the same engine. Just different pieces
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Old 06-26-2007, 02:33 PM
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They are actually identical aside from the red paint.
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Old 06-26-2007, 04:19 PM
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Old 06-26-2007, 04:29 PM
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lol paint it and get a sti intercooler, your engine bay will look just like STi
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Old 06-26-2007, 05:08 PM
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Old 06-26-2007, 05:14 PM
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Old 06-27-2007, 02:11 AM
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so the dimensions on the interior are the same?

What about the JDM ones? I has JDM.
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Old 06-27-2007, 07:08 AM
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there are actually a couple different vacuum hoses that exist on the STi that do not on a WRX(02-07).

So yes, it should fit but you will need to plug the extra holes on the manifold.
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Old 06-27-2007, 11:26 AM
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yeah the sti manifold and wrx manifold in FLOW CAPACITY, are IDENTICAL, the sti manifold does have a few extra ports.
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Old 06-27-2007, 12:59 PM
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Originally Posted by VRT Gump
so the dimensions on the interior are the same?

What about the JDM ones? I has JDM.
jdm sti intercooler is slightly larger
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Old 06-30-2007, 02:44 AM
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What about the intake manifold? Is the JDM bigger than the USDM?
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Old 06-30-2007, 11:48 AM
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Originally Posted by VRT Gump
What about the intake manifold? Is the JDM bigger than the USDM?
identical, save the 2 more vacum fittings... but no TGV's = greatness
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Old 07-01-2007, 04:07 AM
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ok. I was just making sure if it would be an improvement or not on the TR. I hope so, and if not, its red.
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Old 07-02-2007, 05:31 AM
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so did you end up getting it?
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