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Old 04-18-2005, 06:13 PM   #1
Scooby Newbie
Member#: 75866
Join Date: Nov 2004
Location: Connecticut
2005 2.5 RS

Question Sti head/block on 2.5

I have purchased almost everything I need to turbo my RS. But I have been told that I wont get close to a WRX even after this. So I started looking in to doing a swap with a Sti head and block. My problem lies in will the valve timing work? What about the ecu connections? Will a UTEC act the same? Pretty much the wiring is the main problem I think I will run into. Or have been told I will run into. Thanks for the help.
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Old 04-18-2005, 11:27 PM   #2
Scooby Newbie
Member#: 58908
Join Date: Apr 2004
Location: San Jose, CA
'07 STI


umm if you do the turbo system right you will be up with stock wrx's easly. reliability is another question though. if you are going to go with an sti swap you are going to need the sti ecu and harness.
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