Sign in to follow this  
Omsin

WRX / STI GRB - GV Chassis Bracing

Recommended Posts

Does anyone on here have any chassis bracing parts, Cusco parts to be more precise? (not interested in strut or sway bars as I have those already) - looking for real feedback to help me make up my mind about a few pieces. An interesting one I came across today which I haven't seen before is this one: 

 

https://www.japanparts.com/parts/detail/57178

Cusco C pillar brace, I have only managed to find one review on it and it wasn't very in-depth.

xresize_image.php,qimg=71321,asx=458,asy

 

 

Cusco Power Brace Power Steering Rack

 

twzhpf7ya34wvltrhcs2

Cusco Power Brace Rear Member

cus_692_492_rm_1

 

Cusco Power Brace Rear Lower

y800zosqwbfh5bkbn5t1

Cusco Power Brace Crossmember

cus_692_492_m_1

Cusco Front Member Power Brace

dlgdrekexbb8brpoxzez

Cusco Power Brace Floor Center

 

cus_692_492_c_1

 

 

Installed photos:

 

hlhf1uxlqx7obh94jgkd.jpg

s-l640.jpg

buqrel5oacwxy7vbfmbf.jpg

b5xade8qvvwouk40cszn.jpgnnp63h4b6lnkratakqdi.jpg

 

 

Share this post


Link to post
Share on other sites

 The subframes are rubber mounted anyway so bracing them to themselves seems pointless. 

I have a few pre fitted and they make no difference compared to a swaybar or struts. 

 

Braces are are not effective on newer cars as the chassis are so much stiff from the factory.

 

Unless you plan to rally it or track it over ripple strips with stiff springs. Save your coin. 

Share this post


Link to post
Share on other sites
20 minutes ago, Gripless said:

 The subframes are rubber mounted anyway so bracing them to themselves seems pointless. 

I have a few pre fitted and they make no difference compared to a swaybar or struts. 

 

Braces are are not effective on newer cars as the chassis are so much stiff from the factory.

 

Unless you plan to rally it or track it over ripple strips with stiff springs. Save your coin. 

100% agree hence why I’ve also done the subframe and control arm bushings. Aswell as the obvious diff and transmission bushes / mounts.-I had my doubts about the rear subframe brace, that one does indeed look pointless.

 

 

 

Subframe movement around the anchor points / bushes definitely happens, as you mentioned. Chassis twisting and movement in other components also happens. Parts I didn’t mention which I’ve already ordered WILL help, such as the front control arm link / “H brace” and thicker front control arm rear support bracket.

 

The braces above have reviews from overseas stating an improvement but I would like to hear first hand from anyone here who may have them (as often is the case of paid / sponsored reviews on big sites).

 

STI spent a great deal of R&D working on flexible chassis bracing for the S207 or whatever it’s called, you can buy the performance pack from Japan for a good chunk of coin - but I’m not that well off and would rather investigate the effectiveness of the these solid bars.

 

@Gripless I may also remind you that sway bars are mounted to the subframes  (specifically the rear one) 😛 

Share this post


Link to post
Share on other sites

Side note, if you lift your car up with a scissor jack you’ll see exactly how much twisting the chassis will do, just because a car is new doesn’t make it completely rigid. Manufacturers will do the bare minimum. We are at the end of the day talking about Subaru, not a Ferrari. I imagine a great number of corners were cut and cost saving measures were implemented in the design of the car

Share this post


Link to post
Share on other sites

Yes but short of a cage that links all the points solidly you don’t get much.

 

I’ve had cars stripped full of braces and then a cage and it’s little upgrade to braces, then night and day for cage. 

 

The braces in the front arches were the most noticeable. Stitch welding along that area helps too and since it’s under the guards the pain doesn’t need to be matched. 

 

The flexible ones are likely for NHV reduction than out right handling. 

 

Still get more more bang for buck with better tyres and newer shocks. 

Share this post


Link to post
Share on other sites
6 minutes ago, Gripless said:

Yes but short of a cage that links all the points solidly you don’t get much.

 

I’ve had cars stripped full of braces and then a cage and it’s little upgrade to braces, then night and day for cage. 

 

The braces in the front arches were the most noticeable. Stitch welding along that area helps too and since it’s under the guards the pain doesn’t need to be matched. 

 

The flexible ones are likely for NHV reduction than out right handling. 

 

Still get more more bang for buck with better tyres and newer shocks. 

New tyres and coilovers - check, got those 😏

Share this post


Link to post
Share on other sites
Posted (edited)

After having a 2 seater car for a number of years it is refreshing to have a 4 seater and the added benefit of eliminating most of the road noise from the rear - not sure I’d like to remove the rear seats.

 

Yes, list as below:

 

•front control arm bushes - Nolathane

•front tie rod ends and raised ball joint - whiteline

•front control arm H brace on order - Cusco

• bc racing coilovers

• front and rear sway bar complete kit - whiteline

•subframe inserts - whiteline

•rear diff inserts - whiteline 

•rear diff support inserts - whiteline

•front strut brace - Sti

•rear strut brace - Cusco 

•transmission mount and crossmember bushes - whiteline 

•shifter bushes - whiteline 

•driveshaft solid carrier mount - torque solutions 

•steering rack bushes - whiteline

•rear subframe brace on order - Cusco 

•pitch stop mount bushes - whiteline 

•Brake MCB - Cusco 

 

next on my list is the Cusco steering rack bracket and Perrin steering damper locking collars. Also looking at rear trailing, toe and lower control arms

 

Edited by Omsin

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this