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Old 07-26-2004, 02:00 AM   #1
Scooby Newbie
Member#: 43185
Join Date: Sep 2003
Location: The Nine oh hizzle
2003 Honda S2000

Default Intake and Exhaust Swaps...

Does anybody know if the manifolds from a 2.0 and 2.5 are interchangable?

What about headers will the same headers fit a WRX and an STI and are the STI headers the same as an rs?

Any info would be helpful

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Old 07-26-2004, 02:54 AM   #2
Scooby Guru
Member#: 36333
Join Date: May 2003
Chapter/Region: NESIC
Location: East Kingston NH
98 RS
GT30R, closed deck madnes

Default fits?

I'm pretty damn sure Subaru has kept the same Measurements from exaust port to exhaust port. So I think all the ej series headers should be interchangeable. I know I can use iether WRX or STI headers on my 98 DOHC ej25. But the SOHC MIGHT be different.Anyone use WRX headers on thier GC8 SOHC ?

I think intake manifolds will fit all ej as well. But If I'm wrong dont kill me. I know I can use the ej22 SOHC on my 98 DOHC.
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Old 07-26-2004, 10:28 AM   #3
Unsung Boxer
Scooby Specialist
Member#: 37196
Join Date: May 2003
Location: WA state

generaly its all interchangable except:

1. Single Port vs Dual port heads, obviously they wont match up.
2. Turbo vs Non Turbo crossmembers, A turbo header will run into the Xmember of a non turbo car, and visa versa. The Xmember has to match the header.

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