Very confused
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This is a discussion on Very confused within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; Im new here and Im researching for a friend. Heres the story my boy got an wrecked 07 wrx and ...

  1. #1
    Registered User
    Join Date
    Dec 2009

    Very confused

    Im new here and Im researching for a friend. Heres the story my boy got an wrecked 07 wrx and has been piecing it back together
    so far every thing is good but he came across a good deal on a 04 sti engine. right now he has a 07 trans 5 speed my question is
    will the 07 trans flywheel and clutch bolt to that engine. I have researched and flywheel and clutch year says 04-07 so I assume it will work. Thanks for any help.

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  3. #2
    Registered User tarmacsti's Avatar
    Join Date
    Dec 2007
    South Africa, Jo'burg
    As far as I know the bolt pattern for the gearbox is the same as with the mountings etc... so they should fit, however I would suggest on getting a 6sp box to compliment the STI motor.
    **__The Hawk-Eye Alliance__**
    Member #0135

  4. #3
    Moderator T0rque's Avatar
    Join Date
    Dec 2004
    Medford, Oregon
    I Support ClubWRX
    If your using the 5 speed trans you must use your 5 speed flywheel and clutch.

    Lead Wrench @ WTF Tuning, LLC

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  6. #4
    Registered User
    Join Date
    Oct 2003
    I don't think the 5 speed tranny is a good match for the STi engine.

    I used to make more than 330 lb-ft of torque at the wheels in my 06' STi with bolt-on mods, unless he plans to run it stock. No matter what the stock clutch won't live very long in the 5 speed.

    I actually think the taller gears in the 5 speed would work better with the STi motor. You can hold the gear longer to hit a higher top speed, but you are trading off some acceleration.

    10' EVO X MR Touring
    08' Infiniti EX35
    04' Toyota Rav 4
    06' Yamaha R6

  7. #5
    Registered User spt wrx 2k8's Avatar
    Join Date
    Dec 2008
    Queens, NY
    STi 6spd Tranny FTMFW!
    I <3 SASHA.M

  8. #6
    Registered User Blue04Scooby's Avatar
    Join Date
    Dec 2009
    Greensburg PA
    Yeah I would totally agree if your going to use that EJ25 your surely going to want to compliment it with a 6spd gearbox bud

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