Do WRX's & STi's have the same size rear sway bar?
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This is a discussion on Do WRX's & STi's have the same size rear sway bar? within the Suspension & Wheels forums, part of the Tech & Modifying & General Repairs category; I only ask as this is an extremely popular, easy plug-N-play type mod for '10-'13 Outback/ Legacy owners that greatly ...

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    Registered User Pool Runner's Avatar
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    Do WRX's & STi's have the same size rear sway bar?

    I only ask as this is an extremely popular, easy plug-N-play type mod for '10-'13 Outback/ Legacy owners that greatly improves the sloppy handling of those cars. I was wondering if the '11+ WRX models already come with the 19mm STi rear sway or exactly what size it is? and if anyone has swapped this part on their car? And if not can I buy the 19mm STi rear bar that the Outback/ Legacy guys are putting on directly to their cars to my '13 WRX, non-STi and improve some of the body roll when cornering? Any help greatly appreciated in advance.
    Current vehicles:

    2013 WRX Sedan, Base, SWP, Wingless
    2011 Outback, Premium, 2.5i, CVT , SWP
    2011 Ford F-150, SuperCab, XLT, 5.0L, V8

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    and the Funky Bunch Calvinball's Avatar
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    Stock sizes for the wrx are 21 and 16, front and rear. You can swap the STI 19 mm bar in I believe. It will help, but I think it will also change the dynamics of the car if you only upgrade the rear and not the front, increasing oversteer.

    Do you have a specific budget for this? Lots of people upgrade both along with aftermarket endlinks and have lots of good things to say about doing so.
    - Will
    First Mods: What to do and what not to do
    Current Car: 2014 Golf TDI
    Previous Cars:2012 WRB WRX Hatch, 2004 RSX-S, 1998 Grand Prix GTP
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    Quote Originally Posted by Calvinball View Post
    Stock sizes for the wrx are 21 and 16, front and rear. You can swap the STI 19 mm bar in I believe. It will help, but I think it will also change the dynamics of the car if you only upgrade the rear and not the front, increasing oversteer.

    Do you have a specific budget for this? Lots of people upgrade both along with aftermarket endlinks and have lots of good things to say about doing so.
    No don't really have a specific budget for it, just figured since the rear bar is an easy buy in at just $70-90 online depending on where you find it, I would just do that simple mod first.
    Current vehicles:

    2013 WRX Sedan, Base, SWP, Wingless
    2011 Outback, Premium, 2.5i, CVT , SWP
    2011 Ford F-150, SuperCab, XLT, 5.0L, V8

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    I took a 12 STI rear bar and installed it on my 12 WRX with no problems. Car felt better in the turns and it was only 100 bucks....plus, its a subaru part. Great first mod.

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    Quote Originally Posted by brigadoonb View Post
    I took a 12 STI rear bar and installed it on my 12 WRX with no problems. Car felt better in the turns and it was only 100 bucks....plus, its a subaru part. Great first mod.
    Good to know, think I'm going to do it.
    Current vehicles:

    2013 WRX Sedan, Base, SWP, Wingless
    2011 Outback, Premium, 2.5i, CVT , SWP
    2011 Ford F-150, SuperCab, XLT, 5.0L, V8

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