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Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

05 heads 03 ecu?

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Old Oct 20, 2006 | 08:22 AM
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Dynapar
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05 heads 03 ecu?
Hey,

I am curious if 2005 WRX heads will work with a 2003 WRX wiring harness and ecu. I am trying to gather up parts for my ej22t build. this info would help alot.

Thanks
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Old Oct 29, 2006 | 10:41 AM
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Krinkov
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Originally Posted by Dynapar
Hey,

I am curious if 2005 WRX heads will work with a 2003 WRX wiring harness and ecu. I am trying to gather up parts for my ej22t build. this info would help alot.

Thanks
yes, as long as you dont use STI heads your good
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