STi FSB

Is the front sway bar on the STi compatible with the WRX? Someone I know is giving it away for free and it would be a nice upgrade from the tiny WRX sway bar. I am not sure if the STi is an 04 or 05, but probably an 05 since he got it with 15k on it. My WRX is definitely an 03 though. Thanks,
Tom

 

Like Alex said, STI Swaybars will fit on the WRX Sedan, not the Wagon.

 

So I have heard differing opinions on the effect of a larger sway bar. I have heard that it can increase understeer. I have also heard that it drastically improves the handling characteristics of the STi. Whats the case for the WRX?

 

We put a 32mm Strano (addco) hollow sway bar on my wife's STi, and it reduced the understeer of the car by quite a bit. It reduces the loss of camber, giving you more grip in the front. Running stock rear sway, due to SCCA stock restrictions.

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Brian

 

I know the sway on my STI made a world of difference. Should have the same effect on a wrx.

 

I am not quite sure what you mean by "reduces the loss of camber". Does this mean that if you don't have a whole lot of negative camber it makes it feel like you do?

 

the front of the car leans a whole lot less, leading to less camber loss in the front. We could only get -1.0 of negative camber in the front of the sti.

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Brian

 

Are you getting just -1 with camber bolts, plate, or both? Could the lack of camber be due to the fact that your FSB is HUGE or is this expected regardless of size?

 

-1 without any bolts of plates, as neither are legal for A-stock.

The bar has no effect on the amount of camber the car can achieve, it just makes the car lean less when turning.

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Brian

 

One last question, anybody know what the stock FSB sizes are for the WRX and STi?

 

I read on IWSTI:
http://www.iwsti.com/forums/showthread.php?t=49537&highlight=sway+bar+size
that the stock STi front and rear are 20mm, and the WRX front is 20mm and rear is 17mm.

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Brian

 

Well I guess that made my decision. There is really no reason to switch to the STi swaybar given it is the same diameter as the WRX. Thanks for the help Brian.

 

If you decide to get a bigger bar for the front just go in and ask SS for the big boy!

 

If you autocross a lot, get the Strano bar, 32mm hollow. It is lighter than the Whiteline X3006 bar and a lot stiffer. Price is the same also.

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Brian

 

Well I think I need to go for the rear first since it is a lot smaller than the front. I am just trying to locate a decently priced one. Not a lot of them for sale on the forums used, or if they are on sale they go real fast.