STI flexible draw stiffener experience anyone? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

JDM4E · 02-22-2018, 06:25 AM

I am ordering the car and I have a bit discount on all accessories vs. buying after. I want STI flexible tower brace, I read nothing but greatness on it.

But also I am considering the draw stiffener, and I cannot find much info on it. i have found on two occasions that people reported much worse handling after install and this piece causing understeer.

Can anybody please relate, who installed this part separately so could feel the difference?

Thanks.

Bristecom · 02-22-2018, 05:36 PM

I'm curious about this as well. I think the ones reporting understeer had also changed the roll bar too so it was most likely that which was causing it. I'm also curious about the difference between the stock V-braces and the STI flexible V-braces (not the same as the flexible tower brace).

fatoni · 02-22-2018, 06:07 PM

What the point of a tower brace if is flexible?

Code Monkey · 02-22-2018, 06:23 PM

The flexible tower brace and the draw stiffeners work together, no point in having just one installed.

Bristecom · 02-22-2018, 07:03 PM

Quote:

Originally Posted by fatoni

What the point of a tower brace if is flexible?

I think it only flexes with certain forces. The STI endurance racing team has used them for years and a lot of people have reported positive results so apparently it works. I'm more curious about the V-braces though:

fatoni · 02-22-2018, 07:41 PM

Quote:

Originally Posted by Bristecom

I think it only flexes with certain forces. The STI endurance racing team has used them for years and a lot of people have reported positive results so apparently it works. I'm more curious about the V-braces though:

I guess I just think it's bs since it doesn't have any real evidence of working and seems to counter the only thing that people buy these things for (not that I think regular stbs accomplish much either)

Aluma007 · 02-23-2018, 12:19 AM

not sure on those things, but woah did the grimmspeed strut bar make a difference...

weederr33 · 02-23-2018, 12:38 AM

@kuczynskika has the draw stiffeners and flexible tower brace

kuczynskika · 02-23-2018, 01:13 AM

For me, installed the drawstiffeners and I felt an improvement in overall responsiveness through corners. It’s not massive but it’s there. I can’t complain about understear. I certainly views these as a plus.

I now have the flexible tower bar and I don’t feel much with that. It’s been so long since I been stock that it’s hard to remember any difference. I have no complaints tho.

Sent from my iPhone using Tapatalk

norcalpb · 02-23-2018, 03:18 AM

Flexible bracing technology is awesome and amazing for comfort but extremely expensive.

Even when not flexing, these are meant to be softer than say a solid one piece design. These and the Trd under braces are the only 2 piece crossmember braces for our cars, and the one piece underbody braces add a ton of NVH.

JDM4E · 02-23-2018, 10:37 AM

@kuczynskika Thanks. Did you notice the car more "planted" / "on rails" also during hi-speed straight driving after the install?

nikitopo · 02-23-2018, 11:07 AM

Quote:

Originally Posted by Code Monkey

The flexible tower brace and the draw stiffeners work together, no point in having just one installed.

You can have the tower brace alone. I have this part in my Forester and my BRZ and it works perfect. The draw stiffeners cannot be installed alone and have a prerequiste to have already the tower brace.

kuczynskika · 02-24-2018, 05:06 PM

Quote:

Originally Posted by JDM4E

@kuczynskika Thanks. Did you notice the car more "planted" / "on rails" also during hi-speed straight driving after the install?

Yes! That's a good way to describe the sensation. Car kinda feels more level? Not sure if thats the best way to describe it.

norcalpb · 02-25-2018, 09:44 PM

Quote:

Originally Posted by nikitopo

You can have the tower brace alone. I have this part in my Forester and my BRZ and it works perfect. The draw stiffeners cannot be installed alone and have a prerequiste to have already the tower brace.

The 15 and 18 TS only have the V bars, no tower brace. Is this a proper substitute for having stock v bars and the tower bar? Is combining all 3 of them
Overkill?

02-22-2018, 06:25 AM	#1
JDM4E Senior Member Join Date: Dec 2014 Drives: Honda Accord Euro Location: Europe Posts: 204 Thanks: 251 Thanked 54 Times in 38 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	STI flexible draw stiffener experience anyone? I am ordering the car and I have a bit discount on all accessories vs. buying after. I want STI flexible tower brace, I read nothing but greatness on it. But also I am considering the draw stiffener, and I cannot find much info on it. i have found on two occasions that people reported much worse handling after install and this piece causing understeer. Can anybody please relate, who installed this part separately so could feel the difference? Thanks.

02-22-2018, 06:07 PM	#3
fatoni Senior Member Join Date: Apr 2011 Drives: miata, mazdaspeed protege, ls430 Location: socal Posts: 4,416 Thanks: 599 Thanked 1,442 Times in 787 Posts Mentioned: 28 Post(s) Tagged: 0 Thread(s)	What the point of a tower brace if is flexible? __________________ Drive upgrades. Don't buy them.

02-23-2018, 12:38 AM	#8
weederr33 Airborne at your service Join Date: Sep 2014 Drives: '17 BRZ Series.Yellow Location: El Paso, Texas Posts: 6,385 Thanks: 4,559 Thanked 5,656 Times in 2,966 Posts Mentioned: 33 Post(s) Tagged: 2 Thread(s)	@kuczynskika has the draw stiffeners and flexible tower brace __________________ Series.Yellowbird - http://www.ft86club.com/forums/showthread.php?t=122135 MS, CSCS, TSAC-F, CPT

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02-22-2018, 06:23 PM	#4
Code Monkey Senior Member Join Date: Jul 2016 Drives: Subaru BRZ Location: Atlanta, GA Posts: 860 Thanks: 936 Thanked 582 Times in 350 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	The flexible tower brace and the draw stiffeners work together, no point in having just one installed.

02-23-2018, 12:19 AM	#7
Aluma007 Senior Member Join Date: Sep 2016 Drives: 2017 Brz Location: TX Posts: 305 Thanks: 105 Thanked 78 Times in 64 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	not sure on those things, but woah did the grimmspeed strut bar make a difference...

02-23-2018, 03:18 AM	#10
norcalpb Senior Member Join Date: Oct 2013 Drives: 2013 BRZ, 2023 Model 3 Location: SF Bay Area Posts: 2,314 Thanks: 1,238 Thanked 873 Times in 573 Posts Mentioned: 15 Post(s) Tagged: 0 Thread(s)	Flexible bracing technology is awesome and amazing for comfort but extremely expensive. Even when not flexing, these are meant to be softer than say a solid one piece design. These and the Trd under braces are the only 2 piece crossmember braces for our cars, and the one piece underbody braces add a ton of NVH.

02-23-2018, 10:37 AM	#11
JDM4E Senior Member Join Date: Dec 2014 Drives: Honda Accord Euro Location: Europe Posts: 204 Thanks: 251 Thanked 54 Times in 38 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	@kuczynskika Thanks. Did you notice the car more "planted" / "on rails" also during hi-speed straight driving after the install?

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