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Old 03-15-2006, 12:23 PM   #1
jdiddy
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Member#: 108144
Join Date: Feb 2006
Chapter/Region: South East
Location: Knoxvegas
Vehicle:
04 Forester XT
4eat

Default Full STi engine swap into WRX

I've got an '02 that I am getting ready to rebuild. My options are 2.5L shortblock with stock heads and the VF34 that is currently on the car.....or full Sti motor swap. Money doesn't matter because they are going to be the same cost to me.

Basically heres my question can I use my WRX ECU w/ UTEC on teh STi motor or will I need to do a full ECU swap as well?

TIA

ps yes Ive searched (I hate the search engine here)
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Old 03-15-2006, 08:15 PM   #2
Element Tuning
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Member#: 54918
Join Date: Feb 2004
Chapter/Region: MAIC
Location: Gaithersburg, MD
Vehicle:
673 WHP Element
Tuning Pro Comp Engine

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This should help get you started:

http://www.elementtuning.com/V8%20In...%20Install.htm

Good luck.
Phil
www.elementtuning.com
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Old 03-15-2006, 09:10 PM   #3
pux888
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Join Date: Jul 2001
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02 STi swap
12 WRX limited

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yeah you can get by w/ your wrx ecu and utec. I ran mine that way for a while, but you will be missing out on the magic that avcs provides!
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Old 03-16-2006, 12:55 PM   #4
keaniegenie
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Join Date: Aug 2005
Chapter/Region: NWIC
Location: Seattle
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2005 Element 92x
Black

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Yes. The AVCS makes a big diff. I'm doing the same swap and I'm selling my UTEC for a Hydra for the AVCS control. If you're not willing to get a STI ECU with a STI UTEC, get a Hydra, or just get the STI block and put different cams in your WRX heads.
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