Whats the difference between the 06 & 07 sti?

Discussion in 'General Subaru Discussion' started by silver-sti, Feb 11, 2008.

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  1. silver-sti
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    silver-sti Active Member

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    Whats the difference between the 06 and 07 Sti? I know the turbo is different, but anything else.
     
    silver-sti, Feb 11, 2008
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  2. AspitFire
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    AspitFire Well-Known Member

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    top feed injectors (07) vs side feed injectors (06)
     
    AspitFire, Feb 11, 2008
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  3. Se7enrex
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    Se7enrex Well-Known Member

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    thnking about upgrading???...all i know is that the tuning capabilities are easier and a bit bigger on the 07
     
    Se7enrex, Feb 11, 2008
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  4. Taras
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    Taras BANNED

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    I think actually 07 are harder to tune.
     
    Taras, Feb 11, 2008
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  5. silver-sti
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    silver-sti Active Member

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    No Im not upgrading..just wanted to know the facts for my brother. He is looking for an 06 or 07 sti.
     
    silver-sti, Feb 11, 2008
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  6. Shibbs
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    Shibbs The Daywalker

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    What about the aluminum control arms? Did they ditch them on the 07 STI as well?
     
    Shibbs, Feb 11, 2008
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  7. esperunit
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    esperunit Well-Known Member

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    Uglier tail lights on the 07, not much of a difference but still.

    No sodium filled valves on the 07 because the heads are different and subaru claimed the efficiency of the new heads did not require the sodium filled valves. Not very sure on the actual mechanical differences of the heads though, but i'm sure a quick NASIOC search will come up with it.

    07 STi has aluminum control arms, however the 07 WRX lost them. The only Model Year WRX to have aluminum control arms is the sedan 06. No wagons have ever had aluminum control arms due to the different track width, they would have to make special wagon versions.
     
    esperunit, Feb 11, 2008
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  8. wall of tvs
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    wall of tvs Well-Known Member

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    The '07 also has different gear ratios.

    I haven't really looked into it, but I thought I heard at one point that the '07 also has AVCS on the exhaust cams.
     
    wall of tvs, Feb 11, 2008
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  9. SubieDave
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    SubieDave Well-Known Member

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    Headlamps are different too
     
    SubieDave, Feb 11, 2008
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  10. webcrawlr
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    webcrawlr Well-Known Member

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    Taken from IWSTI
     
    webcrawlr, Feb 11, 2008
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  11. Treylizardo
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    Treylizardo Active Member

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    The VF43 turbo on the 2007 has a slightly larger (1mm, I believe) IWG over the VF39 on the 2006. The 2007 also has a pass through rear seat.
     
    Treylizardo, Feb 11, 2008
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  12. Bullwinkle
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    Bullwinkle Well-Known Member

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    The major changes are the heads, turbo, and gear ratio's.

    Since the heads flow much better then previous years, there have been many cases of stock injectors/pump having trouble even keeping enough fuel for the stock tune (which is quite rich, as normal for Subaru).

    The '07 STI's are hard to tune, but make great power.
     
    Bullwinkle, Feb 11, 2008
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  13. jonny8852
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    jonny8852 Well-Known Member

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    ok what makes the 07 sti harder to tune then the previous years?
     
    jonny8852, Feb 11, 2008
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  14. tux121
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    tux121 Well-Known Member

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    Let's test my knowledge:
    2006 STi(left) - 2007 STi(right)

    vf39 turbo - vf43 turbo
    side feed injectors - top feed injectors
    no pollution control - extra pollution control
    plastic motor mounts - kaboom!
    short gearing - abit longer gearing

    other things: 07 STi's TVG are different from other STi's

    damn...thats it............
     
    tux121, Feb 11, 2008
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