Welcome to the North American Subaru Impreza Owners Club Monday June 26, 2017
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Click here to visit TireRack
Brakes & Suspension Forum sponsored by The Tire Rack

Losing traction? Need new tires?
Click here to visit the NASIOC Upgrade Garage...
Go Back   NASIOC > NASIOC Technical > Brakes, Steering & Suspension

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 06-20-2017, 02:49 PM   #1
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default 2015 STI suspension swap onto 2011 STI

I currently have a clunk in my suspension which I believe to be attributed to my 2011 OEM struts having Eibach springs on them. In an effort to eliminate this clunking noise and to also improve overall handling, I have decided to swap in a set of 2015 STI struts. I know I know, that's been done before and documented on this site as well as on others. I have also acquired a set of RCE Black springs to install onto the 2015 STI struts during said install. From what I have read on various posts, the 2015 suspension lowers a 2011 Sedan approx. a half inch. That coupled with the more aggressive spring rate and additional 10mm drop provided by the RCE Black's should prove to be a very nice little setup. I will update this thread with my journey and pictures as well once the install happens.
* Registered users of the site do not see these ads.
cknowlen is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 06-21-2017, 03:45 PM   #2
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Hmmmm... I'm interested in seeing the outcome and process, first time I've read about this and it does sound very appealing to me. Any links to a good write up?
GTP_Jav is offline   Reply With Quote
Old 06-21-2017, 10:14 PM   #3
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

^^ http://www.iwsti.com/forums/gr-suspe...-2014-sti.html

that is the thread i read all about it in. fitment has been confirmed by RCE, however nobody has tried the suspension coupled with the RCE blacks on an 08-14 that i have seen documented anywhere.

Springs arrived on my doorstep today, Struts are on the way and hope to have everything installed this Saturday. I will post comparison pics of how the suspension looks as well as before and afters and a review of handling/ride quality.
cknowlen is offline   Reply With Quote
Old 06-21-2017, 10:31 PM   #4
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Quote:
Originally Posted by cknowlen View Post
^^ http://www.iwsti.com/forums/gr-suspe...-2014-sti.html

that is the thread i read all about it in. fitment has been confirmed by RCE, however nobody has tried the suspension coupled with the RCE blacks on an 08-14 that i have seen documented anywhere.

Springs arrived on my doorstep today, Struts are on the way and hope to have everything installed this Saturday. I will post comparison pics of how the suspension looks as well as before and afters and a review of handling/ride quality.
I immediately started researching after reading your thread and I have decided to do the exact same thing, 15+ struts and RCE black springs. That seems to yield the exact drop I am after with the ride quality and performance I need!
GTP_Jav is offline   Reply With Quote
Old 06-22-2017, 10:59 AM   #5
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

You didn't happen to find any pictures of other people who have done this exact swap did you? I have only seen pictures of it installed on 08-14's with the factory springs, which 08-10 seems to lower close to an inch, and 11-14 about a half inch.
RCE in that thread advised against installing this setup on a GR platform with lowering springs, but this might have been before the release of the 2015+ RCE springs.
A factory setup which lowers my car approx. a half inch, plus the higher spring rate and additional drop of the RCE Black springs should be perfect IMO. I don't see any reason as to why the strut would be 'slammed' or hitting the bump stops all the time, as the travel would be the same as if installed on a 2015+
cknowlen is offline   Reply With Quote
Old 06-22-2017, 11:42 AM   #6
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Quote:
Originally Posted by cknowlen View Post
You didn't happen to find any pictures of other people who have done this exact swap did you? I have only seen pictures of it installed on 08-14's with the factory springs, which 08-10 seems to lower close to an inch, and 11-14 about a half inch.
RCE in that thread advised against installing this setup on a GR platform with lowering springs, but this might have been before the release of the 2015+ RCE springs.
A factory setup which lowers my car approx. a half inch, plus the higher spring rate and additional drop of the RCE Black springs should be perfect IMO. I don't see any reason as to why the strut would be 'slammed' or hitting the bump stops all the time, as the travel would be the same as if installed on a 2015+
I didn't find any pictures, mine is an 11 as well and came to the same conclusion as you.
GTP_Jav is offline   Reply With Quote
Old 06-23-2017, 09:45 PM   #7
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

All the parts arrived on my doorstep today. Got a set of 2015 struts/springs/top hats w 30k on them for $150. Got a set of RCE Black springs w 1k on them for $250.
Installed the springs on the struts today and also mounted up the front struts to the car. Still have to dial in the camber bolts better, but in comparison it looks like w the RCE Black springs the car is about a half inch higher than it was with my Eibach springs on the car. Gap w eibachs was 1 finger in the front, now it's two. Which I think is perfect.
Picture comparison of the fronts side by side:



You will find that the abs mounting tabs don't line up and don't have a welded on nut or threads, so I just used a zippie.



Picture of ride height w the eibachs:

And with the new struts and RCE blacks:


I will finish the install tomorrow morning and will follow up with a full review on the handling and everything. Cheers
cknowlen is offline   Reply With Quote
Old 06-23-2017, 10:25 PM   #8
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Very nice! Very nice car as well! Loving the final result.
So what top hats and perches did you use?
All 2015 hardware?
2015 Shocks/RCEs and 2011 perches/top hats?
Were you able to use the 15+ rear RCEs on your 11 shocks?
GTP_Jav is offline   Reply With Quote
Old 06-24-2017, 09:36 AM   #9
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

Thank you for the kind words. She is coming along nicely.
Everything on the front is 2015 parts now (Struts, RCE springs, top hats).
I have yet to remove the 11 strut assemblies from the car, that's todays project to finish this up. I'm not going to remove the RCE springs from the 2015 rear strut assembly, but i will see if they look similar and take pictures before installing those as well. My bet would be that the 2015 RCE springs cannot be used on the 2011 rear struts as they should be slightly shorter. And RCE lists them as different part numbers.
cknowlen is offline   Reply With Quote
Old 06-24-2017, 11:56 AM   #10
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

Suspension install is complete. Rears went in without any issue. They look pretty identical if you ask me. Overall the ride height is a perfect 2 finger gap in the rear and a 1-1.5 in the front finger gap. Will get actual measurements shortly.
Took the car for a short test drive around the back roads I live on, which are very twisty and bumpy.
WOW. What a difference this made. The dampening of these is night and day. Coupled with the progressive RCE springs, the car handles like a dream and feels much more planted and smooth. The infamous GR braking nose dive is completely gone and quick left right swerves are amazing!!!
I would absolutely recommend this upgrade to anyone with an 08-14!!
Pictures of the rear assemblies side by side:

Installed


Finished product and ride height


cknowlen is offline   Reply With Quote
Old 06-24-2017, 12:33 PM   #11
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Wow! Loving the outcome! Very interesting about the top hats, has me wondering about RCE 15+ top hats as well...
So you were able to use the 15+ rears as well?
GTP_Jav is offline   Reply With Quote
Old 06-24-2017, 02:53 PM   #12
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

Yea, everything from the 2015 setup swaps over just fine. Which made the overall swap super easy, as having the ability to swap the springs over to the struts before attempting to install on the car is really nice.
cknowlen is offline   Reply With Quote
Old 06-24-2017, 03:31 PM   #13
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

Quote:
Originally Posted by cknowlen View Post
Yea, everything from the 2015 setup swaps over just fine. Which made the overall swap super easy, as having the ability to swap the springs over to the struts before attempting to install on the car is really nice.
Perfect! That great to know, makes my search a lot easier as well!
GTP_Jav is offline   Reply With Quote
Old 06-24-2017, 06:38 PM   #14
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Default

My friend you have sold me on this project! I just went ahead and ordered a 15k mile set I found on e-bay, the only set I could find in all of e-bay!! Lol! ��
GTP_Jav is offline   Reply With Quote
Old 06-24-2017, 07:58 PM   #15
cknowlen
Scooby Specialist
 
Member#: 189077
Join Date: Sep 2008
Chapter/Region: NESIC
Location: Connecticut
Vehicle:
2011 STI limited
WRB

Default

If you want the lower appearance without sacrificing ride quality, and want to improve overall handling...this is the setup for you!
cknowlen is offline   Reply With Quote
Old 06-24-2017, 08:35 PM   #16
GTP_Jav
Scooby Newbie
 
Member#: 294027
Join Date: Sep 2011
Location: Orlando, FL
Talking

Quote:
Originally Posted by cknowlen View Post
If you want the lower appearance without sacrificing ride quality, and want to improve overall handling...this is the setup for you!
Very much looking forward to trying it out!
GTP_Jav is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -4. The time now is 10:53 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2017 Axivo Inc.
Copyright ©1999 - 2017, North American Subaru Impreza Owners Club, Inc.