07 Sti 540cc injectors in MY04 WRX?
+ Reply to Thread
Results 1 to 6 of 6

This is a discussion on 07 Sti 540cc injectors in MY04 WRX? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Curious, I plan on undertaking a huge project this Summer with my 2004 WRX sedan. I'll cut to the chase. ...

  1. #1
    Registered User MisterNBG's Avatar
    Join Date
    Jul 2012
    Location
    PA, USA
    Posts
    294

    07 Sti 540cc injectors in MY04 WRX?

    Curious, I plan on undertaking a huge project this Summer with my 2004 WRX sedan. I'll cut to the chase. I want to add a few STi engine parts to my car. More specifically, the VF39 turbo and some STi injectors. I understand there's a lot more parts that need to be added don't worry about that, but I was curious if factory 540cc injectors from an '07 STi would fit in my 2004 WRX? I can buy them right now for $125 and was curious if it was worth it or not

    Thanks fellow gear heads!

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Moderator Donkey's Avatar
    Join Date
    Apr 2005
    Location
    Da boonies
    Posts
    6,159
    I Support ClubWRX
    Yes they will fit as they are the same injectors the 06+WRX uses,but you will need to adjust the injector scaling in the ECU's ROM.
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S




  4. #3
    "Supreme Subaphile Extraordinairre" ninefourteener's Avatar
    Join Date
    Mar 2006
    Location
    SLC area
    Posts
    2,190
    07 STI = Side feed injectors
    04 WRX = Top feed injectors.

    Your injectors will not work.

    Your turbo and intercooler will.

    You will need at least a set of 550cc top feed injectors, a fuel pump, and a suitable exhaust.

    Oh yea.... and a tune.
    2006 Subaru WRX-Thread: http://www.clubwrx.net/forums/engine-modifications/165158-ninfourteeners-progress-thread-pics.html
    1978 Subaru BRAT-Thread: http://www.clubwrx.net/forums/engine...ss-thread.html
    2007 Subaru B9Tribeca Ltd (PSM)........1994 Subaru SVX LSi(SOLD)
    WRX 12 sec drag (vs. late model Camaro SS):http://www.youtube.com/watch?v=lw0vWdD2cjU
    WRX track racing (catching a stg.2 WRX): http://www.youtube.com/watch?v=mELeSD1Mi08
    Co-Founder/retired Admin-www.slcsubaru.com

  5. #4
    Good news, everyone! xxxxxxxAnub1s's Avatar
    Join Date
    Jan 2005
    Location
    Eh, whaaaaa?
    Posts
    3,855
    I Support ClubWRX
    2007 STi injectors are top feed...
    Cody
    Hawk-Eye Alliance #727 N.E.R.D #255.255.255.0

    Your nighttime volunteer of near-useless information.
    Good news, everyone!

  6. #5
    "Supreme Subaphile Extraordinairre" ninefourteener's Avatar
    Join Date
    Mar 2006
    Location
    SLC area
    Posts
    2,190
    Quote Originally Posted by Anub1s View Post
    2007 STi injectors are top feed...
    You're right..... my mistake. STI injectors were side feed from 04-06. I forgot they switched to top feed in 07.

    Good catch.
    2006 Subaru WRX-Thread: http://www.clubwrx.net/forums/showthread.php?t=165158
    1978 Subaru BRAT-Thread: http://www.clubwrx.net/forums/engine...ss-thread.html
    2007 Subaru B9Tribeca Ltd (PSM)........1994 Subaru SVX LSi(SOLD)
    WRX 12 sec drag (vs. late model Camaro SS):http://www.youtube.com/watch?v=lw0vWdD2cjU
    WRX track racing (catching a stg.2 WRX): http://www.youtube.com/watch?v=mELeSD1Mi08
    Co-Founder/retired Admin-www.slcsubaru.com

  7. #6
    Registered User MisterNBG's Avatar
    Join Date
    Jul 2012
    Location
    PA, USA
    Posts
    294
    Quote Originally Posted by ninefourteener View Post
    07 STI = Side feed injectors
    04 WRX = Top feed injectors.

    Your injectors will not work.

    Your turbo and intercooler will.

    You will need at least a set of 550cc top feed injectors, a fuel pump, and a suitable exhaust.

    Oh yea.... and a tune.
    Lol thanks, I know why I need to get, I just didn't know about the injectors. Thanks for the help dude!

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.
If you do not want to register, fill this field only and the name will be used as user name for your post.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself. We strongly suggest that you stay away from using aol, yahoo, msn, and hotmail accounts. Sometimes the mail server blocks the emails from our server. As a result you will not receive any notifications including the confirmation email.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •