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Hi guys  :)

 

My 2010 Impreza 2.5 has worn struts/tops and control arm/rear suspension bushings. I plan on keeping the car for a few more years and would like to upgrade some components to OEM WRX or STI parts. I'm not interested in making it a track car or lowering it alot. I just want to replace the worn base model parts with something better that will make the car feel more sporty. It's a daily driver so it needs to maintain decent ride quality. Here are my ideas/questions:

 

  • Replace front lower control arms / rear links. It seems this is easier than pressing them out and not too expensive. Not really interesting in upgrading to urethane.  
  • Replace factory shocks and springs with OEM equivalent  WRX or STI components. What are the differences in spring rates? Do they just swap in?
  • Once the worn components are replaced I would like to upgrade the sway bars too.
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Group N rubber suspension parts would sorta be in between stock and urethane.

 

you might look around at NASIOC for some wrx take-offs. Folks upgrade and sometimes have low-use parts for sale.

 

I don't know any specifics but, best upgrade I think was my SPT springs on my WRX, about 3/4" lower, less squat and dive, better cornering..., so, maybe Subaru offered some for 2010?

Edited by 1 Lucky Texan
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Any detailed info on the difference in spring rate between base, WRX, and STI?

 

Up till about 2015, the STi spring rates weren't spectacular. 15+ STi's have fantastic suspension. Almost so good that you have to spend a LOT on coils to improve upon it significantly. We put $1800 Tein coils on a 2016 Hyperblue and although it lowered it, the handling and ride was frankly about the same.

 

KING springs are VERY nice and are our go-to for performance springs. 

 

If you can find some take-off 15-17 STi suspension would say get those. They will drop your car about an inch. Yes they fit the GR chassis. 

 

GD

Edited by GeneralDisorder
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Up till about 2015, the STi spring rates weren't spectacular. 15+ STi's have fantastic suspension. Almost so good that you have to spend a LOT on coils to improve upon it significantly. We put $1800 Tein coils on a 2016 Hyperblue and although it lowered it, the handling and ride was frankly about the same.

 

 

KING springs are VERY nice and are our go-to for performance springs. 

 

If you can find some take-off 15-17 STi suspension would say get those. They will drop your car about an inch. Yes they fit the GR chassis. 

 

GD

 

 

awesome post !

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