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Old 08-07-2012, 05:25 AM   #701
sgoldste01
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Do you need bushings if your Impreza already has a RSB?
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Old 08-07-2012, 05:32 AM   #702
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Yes, because the original bushings are too small to fit the thicker 19mm unit. You need the get the correct size bushings to go with the new bar, the factory endlinks on the car will work with the 19mm unit.
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Old 08-07-2012, 07:55 AM   #703
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Originally Posted by uspopo View Post
Yes, because the original bushings are too small to fit the thicker 19mm unit. You need the get the correct size bushings to go with the new bar, the factory endlinks on the car will work with the 19mm unit.
OK, thanks.

Easy install? Is it true that the RSB must be installed with the car's weight on the rear wheels (that is, the car can't be jacked up with the rear wheels floating in the air), thereby forcing us garage monkeys to do this job with the rear wheels on ramps?
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Old 08-07-2012, 08:10 AM   #704
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I think it took about 15-20 minutes to install at my buddy's shop but it was on a lift so I can't answer that.

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Old 08-07-2012, 11:16 AM   #705
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Quote:
Originally Posted by sgoldste01 View Post
OK, thanks.

Easy install? Is it true that the RSB must be installed with the car's weight on the rear wheels (that is, the car can't be jacked up with the rear wheels floating in the air), thereby forcing us garage monkeys to do this job with the rear wheels on ramps?
I haven't heard of that until now, I actually had mine installed on a lift too. So I don't think it should be a problem.
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Old 08-07-2012, 11:23 AM   #706
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Quote:
Originally Posted by sgoldste01 View Post
OK, thanks.

Easy install? Is it true that the RSB must be installed with the car's weight on the rear wheels (that is, the car can't be jacked up with the rear wheels floating in the air), thereby forcing us garage monkeys to do this job with the rear wheels on ramps?
i think that is only on some of them. i think the ones you have to have the wheels on the ground are the ones that says you have to reload. i think most do not have to do this.
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Old 08-07-2012, 11:29 AM   #707
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Originally Posted by ans2k View Post
i think that is only on some of them. i think the ones you have to have the wheels on the ground are the ones that says you have to reload. i think most do not have to do this.
Interesting. I know that installing/replacing a RSB on a VW Golf requires that the wheels be loaded with the car's weight. I assumed it was the same with all RSB installations.
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Old 08-07-2012, 02:04 PM   #708
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I installed my RSB with the wheels off the ground and on jack stands. Only thing is, I have no idea how much torque to apply to the bolts.
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Old 08-07-2012, 02:20 PM   #709
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Originally Posted by leeden View Post
I installed my RSB with the wheels off the ground and on jack stands. Only thing is, I have no idea how much torque to apply to the bolts.
According to my service manual, tighten the Stabilizer Link Assembly to 28 ft-lb. Tighten the Clamp - Stabilizer Bushings to 22 ft-lb.

Hope this helps.

Last edited by sgoldste01; 08-07-2012 at 02:34 PM.
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Old 08-07-2012, 02:31 PM   #710
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Quote:
Originally Posted by leeden View Post
I installed my RSB with the wheels off the ground and on jack stands. Only thing is, I have no idea how much torque to apply to the bolts.
NOTICE!!!!!

Since I was looking up the torque specs in my previous post, I decided to locate the actual procedure for removing and replacing the RSB. The installation procedure begins as follows:

CAUTION:
  • Be sure to use a new flange nut and self-locking nut.
  • Always tighten the bushing in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.
  • Install the clamp - stabilizer bushing with the "G" character facing upward.
  • When installing, align the edge of identification point (a) to the end of face of the bushing (b).

It looks to me like you can't just randomly bolt the new RSB on. As I was asking earlier, the car should be loaded when installing the new RSB. Just thought you guys should know, because it sounds like people are installing new RSBs without following the recommended procedure.

Also note that I just added more detail to the torque specs in my previous post.
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Old 08-07-2012, 02:57 PM   #711
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Great post and info. My buddy owns a Midas and all his mechanics are ASE certified so I have the utmost faith in their knowledge and ability. This isn't a speed shop of car tinkerers...
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Old 08-07-2012, 03:05 PM   #712
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Quote:
Originally Posted by uspopo View Post
Great post and info. My buddy owns a Midas and all his mechanics are ASE certified so I have the utmost faith in their knowledge and ability. This isn't a speed shop of car tinkerers...
That's good. But many of us are car tinkerers, and some of us tinker without using/having proper documentation. Doing so can be problematic, and possibly even dangerous.

From the way I'm talking, you might think that I'm a technical writer by trade. And you'd be right.

I don't do anything without referring to the documentation, if possible. I have often wished that women and children came with documentation.
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Old 08-07-2012, 03:26 PM   #713
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Haha, documentation would make everything easier. If I had the guts to tinker I definitely would not be unbolting and bolting stuff without the proper specs and tools in hand. I let the experienced guys that do that stuff for a living do the hard stuff for me and if I can do the simple stuff by myself and save a couple bucks I will such as installing my Sport Grill.

Stan
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Old 08-07-2012, 09:14 PM   #714
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I also installed a "11 Sti RSB 21mm on my Impreza. It came with the larger bushings. I installed it with no ramps or lift, just creeped under the car and installed it laying on my back. took about 45 minutes. Was hard to figure out how to unscrew the nuts in such a tight position but I found it out and it was pretty easy. Ride quality is a bit better around turns, less body roll. Worthy upgrade to increase driving fun and quality.
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Old 08-07-2012, 09:47 PM   #715
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Quote:
Originally Posted by gregorz4 View Post
I installed it with no ramps or lift, just creeped under the car and installed it laying on my back.
It's good that you did this with the wheels on the ground. Apparently that's the right way.
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Old 08-07-2012, 11:21 PM   #716
pRiMe DiReCtIvE
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Quote:
Originally Posted by gregorz4 View Post
I also installed a "11 Sti RSB 21mm on my Impreza. It came with the larger bushings. I installed it with no ramps or lift, just creeped under the car and installed it laying on my back. took about 45 minutes. Was hard to figure out how to unscrew the nuts in such a tight position but I found it out and it was pretty easy. Ride quality is a bit better around turns, less body roll. Worthy upgrade to increase driving fun and quality.
Just want to confirm, are the '11 STi rsb 19 mm or 21mm?
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Old 08-08-2012, 02:57 AM   #717
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Just want to confirm, are the '11 STi rsb 19 mm or 21mm?
19 mm.
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Old 08-09-2012, 02:18 AM   #718
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Quote:
Originally Posted by pkL View Post
Which one in particular would you have a link and the model?
My apologies for the late response, I just got back to college. I know the inlet from the mid-pipe is 2", so some modding may be required depending on which axle back. These are the ones I found for HKS universal mufflers:

http://www.andysautosport.com/subaru...t/mufflers/hks

I don't know yet which one I'll buy. I may just wait for a axle back or cat back specifically designed for our Imprezas. Considering our car isn't really for "tuners", we may have to wait a bit.
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Old 08-09-2012, 02:59 AM   #719
pkL
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Originally Posted by FlyerHazen View Post
My apologies for the late response, I just got back to college. I know the inlet from the mid-pipe is 2", so some modding may be required depending on which axle back. These are the ones I found for HKS universal mufflers:

http://www.andysautosport.com/subaru...t/mufflers/hks

I don't know yet which one I'll buy. I may just wait for a axle back or cat back specifically designed for our Imprezas. Considering our car isn't really for "tuners", we may have to wait a bit.
Yeah I would too much prefer an axle back or a cat back specifically made and designed for our cars.
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Old 08-09-2012, 11:51 AM   #720
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Quote:
Originally Posted by pRiMe DiReCtIvE View Post
Just want to confirm, are the '11 STi rsb 19 mm or 21mm?
Sorry I meant 19mm, my sport limited came with a smaller one.
The one that came with my '12 Sport Impreza must have been 17mm
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Old 08-09-2012, 11:55 AM   #721
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Quote:
Originally Posted by gregorz4 View Post
Sorry I meant 19mm, my sport limited came with a smaller one.
The one that came with my '12 Sport Impreza must have been 17mm
The one with the 2012 Sport Impreza should be 15 mm.
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Old 08-09-2012, 02:15 PM   #722
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Is the ride prohibitively stiffer when choosing the 21 mm over the 19mm?
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Old 08-09-2012, 02:20 PM   #723
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Quote:
Originally Posted by gregorz4

Sorry I meant 19mm, my sport limited came with a smaller one.
The one that came with my '12 Sport Impreza must have been 17mm
15mm according to the repair manual
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Old 08-09-2012, 10:40 PM   #724
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15mm according to the repair manual
I measured the bar with a micrometer, it's 17 mm with the paint but its actually 15 mm.
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Old 08-09-2012, 10:49 PM   #725
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Quote:
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I measured the bar with a micrometer, it's 17 mm with the paint but its actually 15 mm.
mine was 16.25mm with the paint. we might have measure different locations
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