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Old 03-25-2013, 06:27 PM   #1
paulowrx
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Member#: 280351
Join Date: Apr 2011
Default will v7 engine be a direct replacment on a 04 wrx usdm.

hey i have a 04 usdm 2.0L wrx im thinking of getting a v7 sti engine question what i want to know is that will it be a direct replacemnt simply bolt off and on kinda thing or will their be customizations needed for the swap?
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Old 03-26-2013, 02:45 PM   #2
paulowrx
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really.. no one in north america knows?
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Old 03-26-2013, 03:54 PM   #3
maxim05
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Member#: 97619
Join Date: Oct 2005
Chapter/Region: TXIC
Location: SE Texas
Vehicle:
04 WRX Wagon
PSM

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My guess as to why no one has responded is that this question can be answered by reading the sticky at the top of the forum.
If that is not sufficient enough, the search function should be utilized to fill in those gaps. The short answer to your question is that the engine is a direct "bolt on", so no customizations are needed. Wiring is simple as far as motor swaps go, other than wiring in AVCS which can be purchased from IAP as a kit.
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Old 03-26-2013, 06:58 PM   #4
paulowrx
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thanks very much for the help maxim05 very much appreciate it.
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Old 03-31-2013, 10:44 AM   #5
Scooby2002
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Member#: 291441
Join Date: Aug 2011
Location: Houston
Vehicle:
2004 WRX
Black

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I just got a v7 swap into my 04 WRX. I had a shop do it so I didn't actually do the work myself. I did get the JDM ecu and wiring harness so it was pretty straight forward and everything works, including the AVCS.

I would highly recommend the v7 if you're looking for a new motor. It surprised me the first time I pushed it hard and it really is very smooth.

Also make sure to get it tuned before pushing it. I get boost creep and had to upgrade the stock injectors and my fuel pump. Not sure if you will have to or not but getting it tuned will tell and better safe then sorry.
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