('14-'18) 20mm Rear Sway Bar - Page 2 - Subaru Forester Owners Forum
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post #16 of 29 (permalink) Old 03-28-2018, 01:30 PM Thread Starter
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I agree with what everyone said about adding the 20mm bar. It tightens up the rear and has a more solid feel without compromising ride quality. For a $100 and an hour in your driveway it is well worth the investment. Did this to my 2015 Legacy too and was very pleased. Highly recommend!


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post #17 of 29 (permalink) Old 03-29-2018, 06:30 AM
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I also went with the 20mm bar. I installed mine about 4 months ago and it has made me much happier with the handling. The car just feels more planted in all situations. I got to test it out on a trip up to the mountains recently and the handling on curvy roads is way better. It leans less and I found it easier to make small steering corrections.

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post #18 of 29 (permalink) Old 03-29-2018, 11:11 AM
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I can't wait to get mine on!

It has been sitting in in the back of my Jeep (which has both of its swaybars permanently removed) waiting for time to install.

Hopefully in a few months I can get it in
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post #19 of 29 (permalink) Unread 04-21-2019, 08:40 PM
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What is people's experience with the 19mm or 20mm off of paved roads? I live around a number of US Forest Service roads that I drive in during the hiking season. Not anything involving rock crawling, though; I usually drive in 2nd or 3rd gear. How would either of these affect these drives, if at all?
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post #20 of 29 (permalink) Unread 04-22-2019, 06:21 AM
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A stiffer suspension, and the RSB in this instance, will make off-roading less gooder. The 16mm bar Subie installs is a compromise, to satisfy the most people. It allows reasonable and comfy handling on the highway and still flexes enough for rough terrain. The stiffer you go, the less the wheels will be able to keep contact with the dirt road. I have a 22mm on the rear and it holds the car very stable at high speed on the highway, but on a rutted fire road I would be 3-wheeling it over holes.

I don't have any rough-ground experience with mine, other than flat fields and gravel lots. Maybe someone with a built off-road Fozzy can comment. For dedicated trail use I'd think a soft bar, or none at all, would be best. My cousin has quick-disconnects for the sway bars on his jeep. When he gets to the trail head he disconnects the bar from the axle and ties it up, for the easiest flexing. That would be bad on the highway though, so You'll need a happy medium.
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post #21 of 29 (permalink) Unread 05-07-2019, 07:58 AM
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Planning on getting the 20 mm from subaru. What tools do i need? I'm hoping i can just lay down in my garage to install without jacking the car up...
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post #22 of 29 (permalink) Unread 05-07-2019, 10:13 AM
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Quote:
Originally Posted by jlx21 View Post
Planning on getting the 20 mm from subaru. What tools do i need? I'm hoping i can just lay down in my garage to install without jacking the car up...
Just a socket wrench. Forget the size. Biggest challenge is maneuvering out of where its installed. And thats not very hard.

Be careful what you wish for.
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post #23 of 29 (permalink) Unread 05-07-2019, 12:14 PM
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To give you an idea of how much stiffer a larger bar is....





In case picture goes away some time down the road....
http://www. subaru4you.co .uk/images/parts/suspension/whitelineswaybarstiffness.jpg
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post #24 of 29 (permalink) Unread 05-20-2019, 10:33 AM
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Looked under 19, not near same bar.

...and do have a Safe Trip!

Last edited by CrystalPistol; 06-01-2019 at 01:30 PM.
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post #25 of 29 (permalink) Unread 05-29-2019, 07:25 AM
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I did the 20mm rear sway bar on our '17 Forester this past weekend, and boy, what a marked improvement it was over the stock unit.

Install took about 45 minutes, mostly due to fighting the slightly-crusty end links out of the lower control arms. On a difficulty scale, I would rate it a 2/10. All that was required was a set of metric allen wrenches, 14mm box end wrench, and a 17mm box end wrench.

While it's not exactly a "canyon carver", the tossing the thing around a little on the twistier back roads was far more fun. Stability was better, and everything felt less top-heavy due to the reduced roll out back. I didn't note any change in ride comfort that could be quantified, and the fit/finish of the bar was perfect, as you'd come to expect from an OE Subaru part. For $88, you would be very hard pressed to find an easier modification to do with such a large, positive impact.



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post #26 of 29 (permalink) Unread 05-29-2019, 03:01 PM
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2015 WRX rear sway bar will fit a 2015 Forester

I bought a used 20mm bar from a 2015 WRX on ebay for $30 and it took me 45 minutes to install. Well worth doing.
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post #27 of 29 (permalink) Unread 06-09-2019, 08:06 AM
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Quick question: Are you talking about an OEM swaybar that I would buy at the Subaru dealership?
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post #28 of 29 (permalink) Unread 06-09-2019, 08:31 AM
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You can try and find a used one or buy new from one of the Forum parts vendors. Think they are around $85 new.
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post #29 of 29 (permalink) Unread Today, 12:47 PM
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Quote:
Originally Posted by Steel City Subi View Post
You can try and find a used one or buy new from one of the Forum parts vendors. Think they are around $85 new.
As an FYI for anyone out there, Subaru Online Parts sent me a quote of $76 for the bar and bushings and $25 for delivery to SF bay area from NY. If you live on the east coast, this becomes a great buy for a new Subaru part.
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