Welcome to the North American Subaru Impreza Owners Club Wednesday November 13, 2019
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.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 10-14-2019, 08:17 PM   #1
BRGT
Scooby Newbie
 
Member#: 406470
Join Date: Nov 2014
Chapter/Region: NWIC
Location: North Idaho
Vehicle:
2013 STI Hatchback
Ice Silver Metallic

Impreza WRX STi STI Suspension Differences: 2015-2017 vs. 2018-2019

Hey guys,

After searching around I haven't found any definitive info on the differences between these years of STI strut/springs.

I know Subaru revised the suspension in 2018, and they have different part numbers, so there must be some differences in dampening or spring rates (probably to compensate for the 2018's 19" inch wheels). I am guessing that the 2018+ suspension is a little softer to compensate for the bigger wheels, but I'd like to find more specifics.

Does anyone have any info? Thanks for the help!


2015-2017 part numbers:
Front: 20365VA000
Rear: 20310VA000

2018-2019 part numbers:
Front: 20365VA400
Rear: 20310VA410
* Registered users of the site do not see these ads.
BRGT is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 10-21-2019, 02:43 PM   #2
BRGT
Scooby Newbie
 
Member#: 406470
Join Date: Nov 2014
Chapter/Region: NWIC
Location: North Idaho
Vehicle:
2013 STI Hatchback
Ice Silver Metallic

Default

Bump. Anybody have any info?
BRGT is offline   Reply With Quote
Old 10-21-2019, 09:54 PM   #3
Blktrax
Scooby Specialist
 
Member#: 220971
Join Date: Aug 2009
Chapter/Region: South East
Location: West, NC
Vehicle:
2002 WRX 224K Mi.

Default

There is no technical data in the Service manual.
Only Stated in the 2018 New Car Info
Also consider there is the 3rd option of the Bilstien Type RA for 2018 also.

1. FRONT STRUT COMPL
The damping force of the front strut COMPL has been modified to improve handling stability and ride comfort.
2. COIL SPRING
The front coil spring constant has been modified to improve handling stability and ride comfort.

1. REAR SHOCK ABSORBER
The damping force of the rear shock absorber has been modified to improve handling stability and ride
comfort.
2. COIL SPRING
The spring constant of the rear coil spring has been modified to improve handling stability and ride comfort.
3. REAR STABILIZER
The diameter of the rear stabilizer has been modified to improve handling stability and ride comfort.
Blktrax is offline   Reply With Quote
Old 10-22-2019, 03:42 PM   #4
BRGT
Scooby Newbie
 
Member#: 406470
Join Date: Nov 2014
Chapter/Region: NWIC
Location: North Idaho
Vehicle:
2013 STI Hatchback
Ice Silver Metallic

Default

Thank you for the response! I appreciate it. That starts to piece things together.

Does anyone know where you can get technical data on this stuff?
BRGT is offline   Reply With Quote
Old 10-22-2019, 05:35 PM   #5
gasgaskid
Scooby Newbie
 
Member#: 455827
Join Date: Oct 2016
Default

Note that this on the STI's, i wonder if there where any changes on the newer WRX's? I upgraded my 2016 Base to 2016 Premium shocks, struts and springs, still on the firm side but a lot better than stock.
gasgaskid is offline   Reply With Quote
Old 10-22-2019, 06:08 PM   #6
BRGT
Scooby Newbie
 
Member#: 406470
Join Date: Nov 2014
Chapter/Region: NWIC
Location: North Idaho
Vehicle:
2013 STI Hatchback
Ice Silver Metallic

Default

I don't recall if there were changes to the WRX's or not in 2018. Good upgrade for you though going to the inverted fronts.
BRGT 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 09:46 PM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2019 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.