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Old 04-05-2017, 03:28 PM   #1
The rookie24
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Default wrx swapping 05 rs useing rs intake manofold

so im wrx swapping my 05 rs and going big turbo and want to use my rs intake manifold because apparently via the forums its flows very well so started ripping the car apart and slapped the 2.5 intake on the wrx instantly ran into my first issue center bolt holes line up but the outers do not I was told all these ejs are swappable for the most part the intake is the long runner single piece non tgv intake. any tips ?
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Old 04-05-2017, 04:47 PM   #2
jkenna860
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I think you need the long runners from the good old 2.5L DOHC outback motors from around 1997-1999? Those looks like the right shape at least ive never tried to test fit it.
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Old 04-10-2017, 10:43 PM   #3
wtdash
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So a WRX EJ205/EJ255 longblock, correct?

DOHC IM does NOT fit SOHC IM - vice versa....EDIT: If you're still IM-conflicted, maybe the EJ207 is better? But doubt it.

And NO. the older stuff (phase 1) does NOT swap to '99+ (Phase 2).

(Tangent: '99 Legacy OB/GT was still a phase 1 Ej25D DOHC - but a Phase 2 EJ25x shortblock.)

Last edited by wtdash; 04-10-2017 at 11:10 PM.
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Old 04-10-2017, 11:01 PM   #4
2slofouru
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If you have the big plenum style RS manfold, like in these threads, it should bolt up. Some say two of the holes have to be widened but it fits after that. I have a sohc manifold I'm shaving and it will be going on a slightly built block with slightly built 2002 wrx heads.

https://forums.nasioc.com/forums/sho....php?t=2281668

https://forums.nasioc.com/forums/sho...d.php?t=807772

https://forums.nasioc.com/forums/sho....php?t=2229576

Last edited by 2slofouru; 04-10-2017 at 11:09 PM.
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Old 04-12-2017, 01:57 PM   #5
The rookie24
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that's the intake I have I lined up the gaskets the center ones match the outers are just a hair off so it will have to widened
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Old 04-12-2017, 08:04 PM   #6
2slofouru
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Yeah a few guys said the outers were a hair off and had to be drilled a little. Hopefully mine line up, but with my luck they will have to be drilled.
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