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Old 08-13-2012, 01:41 PM   #1
sublinux
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Member#: 319885
Join Date: May 2012
Location: Canada
Vehicle:
2008 Impreza 2.5i

Default How to: Install wrx rear sway bar on a 2.5i 08+

Here a tutorial about how to install a rear sway bar on a 2008+ Subaru Impreza.

I used a sway bar from a 2011 WRX which is 16mm thickness. You can use one from a 2008 to 2011.
2008 -> 15mm
2009-2011 -> 16mm

First lets start with the hardware that you need. Go buy them at a dealer:
2x Bracket -> 20466FG000
4x Bracket bolt -> 010108200
2x Bushing -> 20464FG000
2x Endlink -> 20470FG000
2x Endlink Nut -> 902370046
2x Bottom Bolt for Endlink -> 901000221 & Nut -> 902350001 (or you can use a M10x90mm or 3/8- 3"1/2 with the nut)
You can use washer on the bolt if you want like i did



Once you have all of the hardware needed,

1. Grease the bushing and the bar (they goes outside the metal sleeve)
2. Jack the rear of the car and secure it with Jack stand.
3. Bolt the endlink on the control arm
4. Slide the bar under it. The small curve on the bar goes upward and the bushing goes in the rear of the subframe bracket (You should see it). On a sedan with double exhaust it may be a little harder to slide it in.
5. Install the bracket and tight them in place
6. Bolt the endlink to the sway bar (Do not tight the bolt)
7. Put the car on the ground
8. Tight the endlink nut with wrench and Hex key

That how it should look like
Left side

Right side


And go for a ride!

For me its day and night, there is no more rebound from the rear suspension and its more stiffer! All the hardware (Except the bar) cost me around 30$.
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Old 08-13-2012, 10:49 PM   #2
XERO287
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Member#: 253541
Join Date: Jul 2010
Chapter/Region: MAIC
Location: Silver Spring, MD
Vehicle:
2011 WRX 5DR Premium
OBP

Default

Looks great! Those parts look familiar =) I'm glad you're enjoying them!

It may be easier for you guys to simply go on ramps. That way the suspension is already loaded so you can untighten/retighten bolts much easier.

This is what I upgraded to:





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Old 11-03-2012, 08:20 PM   #3
s1eepR
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Member#: 335330
Join Date: Oct 2012
Chapter/Region: Tri-State
Location: NYC
Vehicle:
2008 Impreza 5DR
DGM

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Thanks for the write up. I don't have ramps, so I will probably let my mechanic just do it anyway. Any idea how much they should charge since it's just about 10-15 minute install?

Or should I save the labor costs, buy the ramps now and be proactive for future DIYs?
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Old 11-04-2012, 02:58 PM   #4
chino_487
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Join Date: Apr 2009
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Location: West Los Angeles, CA
Vehicle:
2009 WRX Sedan
SSM

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a friend and I did his rear sway bar without any ramps, granted we both are pretty lean guys. if your car isnt lowered, and you're on the smaller end of the body size scale, this can be done with the car on the ground.
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Old 11-05-2012, 06:54 AM   #5
sublinux
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2008 Impreza 2.5i

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Quote:
Originally Posted by chino_487
a friend and I did his rear sway bar without any ramps, granted we both are pretty lean guys. if your car isnt lowered, and you're on the smaller end of the body size scale, this can be done with the car on the ground.
I did the same thing. It take me about 30 min to do it.
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Old 11-05-2012, 06:55 AM   #6
s1eepR
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I'll try it then. It's cold so I hope I finish fast haha.
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Old 12-03-2012, 12:59 PM   #7
suuichi
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Chapter/Region: MWSOC
Location: Ft. Riley Kansas
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Dark Grey Metallic

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Wow that is really good and makes me feel better about doing it myself.
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Old 12-03-2012, 02:12 PM   #8
lazyimpreza
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+1 thanks for posting this up
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Old 04-14-2014, 10:23 AM   #9
Motter
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Join Date: Mar 2014
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2011 Impreza 2.5i
Spark Silver Metalic

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Sublinux, how much did you spend on the bar and all the parts from the dealer?
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Old 04-14-2014, 11:11 AM   #10
MercuryGodOfInfinity
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Member#: 362799
Join Date: Jul 2013
Chapter/Region: NESIC
Location: Massachusetts
Vehicle:
2008 Impreza OBS
Obsidian Black

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I have an 08 STi bar (18 mm) on my 08 Impreza. Planning on upgrading soon and will be selling the bar then. If anyone is interested I will let you know when it goes up for sale.
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Old 04-15-2014, 05:19 PM   #11
mykthex
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Member#: 385704
Join Date: Mar 2014
Location: Quebec
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2009 Impreza 2.5i
DGM

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Will a 2013 WRX rear sway bar fit my 2009 2.5i ?
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Old 04-15-2014, 06:43 PM   #12
pbguy1991
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Old 06-05-2014, 05:35 AM   #13
erictracey614
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Join Date: Aug 2013
Chapter/Region: Tri-State
Location: Newton
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Gray

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That looks like it is for an upgrade to a previous sway bar. If your putting it in the 2.5i without one in it already.. You'll need the bar, bushing.. Like the Amazon has.. Plus endlinks, the end link brackets and bolts
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Old 06-05-2014, 07:11 AM   #14
lukethedork
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I'm fairly sure that the OEM bushes do not require grease. Mine did not have grease from the factory. It will only serve to trap contaminants.

Also did you notice that the bushes for the 16mm bar have the diameter symbol followed by '15mm', meaning it has a 15mm hole. I checked a factory 16mm bar and bush and they were the same.
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Old 11-13-2014, 05:27 AM   #15
Htownman
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2014 Subaru impreza
Silver

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Do you know how I can get a parts list for the front sway bar
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Old 11-13-2014, 08:31 AM   #16
lukethedork
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Google would be your best bet.
It should be noted that FRONT sway bars between Naturally Aspirated and Turbo model Imprezas are not interchangeable though. Atleast for the 08+ models.

Last edited by lukethedork; 11-13-2014 at 08:44 AM.
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