400 hp help!
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This is a discussion on 400 hp help! within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Hey I have a 2004 wrx wagon and I want to get it up to 400 hp. I have sti ...

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    400 hp help!

    Hey I have a 2004 wrx wagon and I want to get it up to 400 hp. I have sti injectors, turbo back exhaust( gonna change it to invidia n1). I'm getting the act heavy duty street clutch. I also have a unknown turbo but im gonna get a new one. So I'm wondering what do I all need to replace to get to 400 hp? I'm a Perrin fan. I also have had this car for less than two months just wanna start making a list lol. Thanks


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    OMG WTF MainFrame's Avatar
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    lol.. 400hp, or 400whp? Do you have deep pockets? Do you have another reliable car to use as transportation?

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    Hp


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    OMG WTF MainFrame's Avatar
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    What are you going to be using to measure hp? Virtually everything is measured at the wheels.. if you're wanting to pick an arbitrary number to set your goal, I would suggest something that can be more easily measured.

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    Then wheels lol


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    OMG WTF MainFrame's Avatar
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    So now you want 400whp? This will get really expensive if you change your goals all the time (trust me, lol).



    First thing you're going to want to do is replace the engine and transmission. I'm not sure how detailed you want me to get, I could list out most of the parts you would need with brand recommendations and about how much they all cost (at least for how I would go about doing it).. there are a few different ways of going about it, but keep in mind the car will never be reliable at that power level.

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    Master Baiter EJ257's Avatar
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    Sell your car for an STI as the starting platform.
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    OMG WTF MainFrame's Avatar
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    Quote Originally Posted by EJ257 View Post
    Sell your car for an STI as the starting platform.

    ^that would be the cheaper way of going about it.

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    The Guy On The Couch TownLine500's Avatar
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    Quote Originally Posted by EJ257 View Post
    Sell your car for an STI as the starting platform.

    Yup! Even buy a later Gen WRX. I'm at 291whp and 320 Tourqe, and haven't broke the bank. With the 2.0 wagon 400whp would be a pretty big challenge.
    And 04 hatch what do you mean by hp? Are you talking wheel or crank or some other arbitrary thing? Like MainFrame said it's all about whp.
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    Wheel


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    And btw I got my car for 6500 only lol


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    The Guy On The Couch TownLine500's Avatar
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    Quote Originally Posted by 04wrxhatch View Post
    And btw I got my car for 6500 only lol


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    How many miles on it? I got my 04 WRX in 2010 for $12000. I sold it in 2013 for 9000 and got a short throw shift and bushing.
    04 had 19,800 when I got it about 14,000 when I sold it. Should have kept for auto cross!
    STINK EYE MOB #500

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    Master Baiter EJ257's Avatar
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    You've got another $15K to save
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  15. #14
    The Guy On The Couch TownLine500's Avatar
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    Quote Originally Posted by EJ257 View Post
    You've got another $15K to save
    Agreed. Those 2.0 Wrx's take some serious time and money to raise whp to 400.
    It can be done but would cost over $15,000. If you love the car get to work. If not see what you could sell it for. The main reason I upgraded from 2004 Wrx to 2013 Wrx was the 04 was an automatic. Drove me nuts after a while.
    STINK EYE MOB #500

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    I would but I got mine for a good price and I love it and I can afford it


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