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Old 09-07-2019, 05:46 PM   #1
Nahoward
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Member#: 486869
Join Date: Jun 2018
Chapter/Region: TXIC
Location: Dallas, TX
Vehicle:
2018 WRX CVT Stage2
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Default JDM S4 STI Parts

So I finally stumbled upon https://www.sti.jp/en/parts/wrxs4_va/chassis/ after trying to do research into what separates the S4 from the WRX, and came across the following four parts/kits and was wondering if anyone has any insight into what they are, and if they fit on the USDM 15+ WRX. They are:

FLEXIBLE TOWER BAR FRONT
https://www.sti.jp/en/parts/wrxs4_va.../ST20502VV030/

FLEXIBLE DRAW STIFFENER F
https://www.sti.jp/en/parts/wrxs4_va.../ST20118VV000/

FLEXIBLE SUPPORT SUB FRAME R
https://www.sti.jp/en/parts/wrxs4_va.../ST20157VV000/

LATERAL LINK SET
https://www.sti.jp/en/parts/wrxs4_va.../ST20250VV000/

I'm curious if anyone has installed them, and if there's any additional parts needed for them to work as expected (as I'm uncertain how close the S4 and WRX's suspension are to each other).
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Old 09-07-2019, 05:52 PM   #2
GlarryHoodDIT
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Member#: 460907
Join Date: Jan 2017
Chapter/Region: RMIC
Location: Colorado
Vehicle:
2016 WRX

Default

Site states that the Flexible Tower Bar CANNOT be installed Left Hand Drive vehicles. The next two listed mods require the Flexible Tower Brace to be installed. Lateral link set might work though.
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Old 09-11-2019, 11:34 PM   #3
gtsilver944
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Join Date: Mar 2016
Location: Maine
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The stiffeners are frame braces that allow for some flex, supposedly for maintaining comfort. The links are rear lower control arms and toe arms with sealed spherical bearings, but no camber adjustment.

What's to interfere on a LHD car with the strut brace? Pretty sure the 'Ring 24hr car was LHD and had that part on it.

There's threads here about people installing these parts on older WRXs. I believe they are common to many special editions, S209 and older "S" editions.
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Old 01-15-2020, 01:04 AM   #4
J168
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Member#: 461992
Join Date: Jan 2017
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Quote:
Originally Posted by gtsilver944 View Post
The stiffeners are frame braces that allow for some flex, supposedly for maintaining comfort. The links are rear lower control arms and toe arms with sealed spherical bearings, but no camber adjustment.

What's to interfere on a LHD car with the strut brace? Pretty sure the 'Ring 24hr car was LHD and had that part on it.

There's threads here about people installing these parts on older WRXs. I believe they are common to many special editions, S209 and older "S" editions.
You wouldn't happen to know if the STI version of the front draw stiffener and front support kit would fit a WRX?
Parts: ST20118VV010 ST20106ZR000

I installed the strut tower bar about a month ago, it fits fine for LHD. Make sure you get the version for the WRX. I heard the STI version requires permanent removal of the engine cover.
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