Welcome to the North American Subaru Impreza Owners Club Monday September 22, 2014
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...
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
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 03-27-2008, 05:46 PM   #1
Scooby41
Scooby Newbie
 
Member#: 165375
Join Date: Nov 2007
Chapter/Region: Tri-State
Vehicle:
2006 Imprezive 2.5i
Steel Gray

Default Stock sti springs on my 2.5i?

Ok i know ive heard rumors about stock STI springs being an upgrade for the forester and rs's so... i found a complete set of 06 sti springs to put on my 06 2.5i on ebay shipped to my door for 30 bucks. my questions are:
1.direct fit or some mods needed?
2.if they fit are they going to harm my stock struts?
3.if any what are my gains going to be?
4.killer deal or go with an aftermarket spring?

lookin for any type of help i can get...i really appreciate it!
* Registered users of the site do not see these ads.
Scooby41 is offline   Reply With Quote
Old 03-27-2008, 10:39 PM   #2
kxf169
Scooby Newbie
 
Member#: 135662
Join Date: Dec 2006
Chapter/Region: Tri-State
Location: new jersey
Vehicle:
2006 Impreza 2.5i
RBP black shoes

Default

anyone have pictures of the drop
kxf169 is offline   Reply With Quote
Old 03-27-2008, 10:58 PM   #3
semaj
I'm sorry for apologizing
Moderatour
 
Member#: 113533
Join Date: Apr 2006
Chapter/Region: VIC
Location: Vancouver, BC
Vehicle:
2006 Pathfinder
Off Road

Default

They bolt on without modification, are a great bargain upgrade, and are fine for your stock struts.

Here's an old pic of my car with '04 STi springs, back in the day



semaj is offline   Reply With Quote
Old 03-28-2008, 02:00 PM   #4
Scooby41
Scooby Newbie
 
Member#: 165375
Join Date: Nov 2007
Chapter/Region: Tri-State
Vehicle:
2006 Imprezive 2.5i
Steel Gray

Default

aright then im good to go. thanks alot semaj.
Scooby41 is offline   Reply With Quote
Old 04-13-2008, 04:31 PM   #5
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

Anybody have an answer to question #3?
iyzmi is offline   Reply With Quote
Old 04-13-2008, 04:39 PM   #6
nhat
Scooby Guru
 
Member#: 140163
Join Date: Feb 2007
Chapter/Region: MAIC
Location: 3MI Racing
Vehicle:
03 STi
hellaflunctional

Default

the answer to #3 is stiffer spring rates, a slight drop, and huge savings by spending only $50 for a set of sti takeoff springs.
nhat is offline   Reply With Quote
Old 04-13-2008, 04:46 PM   #7
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

How much stiffer? How much drop? Any performance improvements?
iyzmi is offline   Reply With Quote
Old 04-13-2008, 04:47 PM   #8
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

increase in rate is more than 50%, drop will be less than 1/2"
QuikWgn is offline   Reply With Quote
Old 04-13-2008, 05:58 PM   #9
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

So it will 50% stiffer? That small of a drop doesn't even seem worth the effort.
iyzmi is offline   Reply With Quote
Old 04-13-2008, 07:20 PM   #10
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

People don't use STi springs for the drop they use them because the stiffer rates decrease bodyroll and increase handling.
QuikWgn is offline   Reply With Quote
Old 04-13-2008, 07:23 PM   #11
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

Drastically improve handling or just a little bit? Is the improvement in handling worth the trade off for less comfortable/stiffer springs in a DD?
iyzmi is offline   Reply With Quote
Old 04-13-2008, 08:50 PM   #12
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

Well it will handle better, but on stock tires, mushy 2.5I top hats, stocks sways, endlinks etc you will not see as much benefit as if you had good tires, aftermarket endlinks etc, but it will still be ALOT better than the stock springs.
QuikWgn is offline   Reply With Quote
Old 04-13-2008, 08:55 PM   #13
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

I don't have stock tires. I have some Potenza RE960AS. So with just tires and springs, there will be much less body roll and much better handling? How easy is the install?
iyzmi is offline   Reply With Quote
Old 04-13-2008, 09:36 PM   #14
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

What tire size are you running? For instance a 205/55/16 is going to have a lot more sidewall flex/tire rollover than say my 225/40/18's. I can tell you if you can turn a wrench and have jack stands etc probably 2-4 hrs. Took about 4 to swap struts/springs on my 03 with plenty of bs'ing, smoke breaks, lunch breaks etc. Set aside the afternoon. Having an extra set of hands to get the struts back in will considerably shorten the reinstall time.
QuikWgn is offline   Reply With Quote
Old 04-13-2008, 09:48 PM   #15
iyzmi
Scooby Specialist
 
Member#: 150004
Join Date: May 2007
Location: Milwaukee, WI
Vehicle:
2002 18g WRX
WRB 310hp/285tq

Default

Stock size. Is there anything particularly difficult during a spring install? Is there a tutorial somewhere I can look at? Thanks for your help man!
iyzmi is offline   Reply With Quote
Old 04-13-2008, 10:08 PM   #16
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

If you're new to this rent/borrow a spring compressor from your local nationwide autoparts chain. Have a BIG breaker bar handy, and a good torque wrench, airtools helpful.

http://forums.nasioc.com/forums/show....php?t=1471756
QuikWgn is offline   Reply With Quote
Old 04-14-2008, 12:34 AM   #17
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Quote:
Originally Posted by Scooby41 View Post
1.direct fit or some mods needed?
They will physically fit everything you have now. However, I would place upgraded struts in the "mods needed" column

Quote:
2.if they fit are they going to harm my stock struts?
Due to the fact that the springs are both lower and stiffer than your stock springs, the USDM STi take offs will shorten strut life as compared to strut life with the stock springs. However, considering that they aren't stupidly low and they're not stupidly stiff, it's not like you're going to kill the struts this month.

Quote:
3.if any what are my gains going to be?
The primary benefit to any increase in spring rate is the ability to take advantage of stickier tires, which means you'll be faster once you get stickier tires. All the other effects are just things that make you smile.

Quote:
4.killer deal or go with an aftermarket spring?
Killer deal. USDM STi take off springs are the best springs for someone who is looking for performance (not looks) and isn't going to run r-comp or stickier tires.


I own an RS and I have USDM STi springs (and upgraded dampers) on it. I LOVE it. That being said, you're going to be VERY underdamped with the STi springs on RS struts. This will definitely prevent you from seeing the full benefit of the springs and, depending on your personal tastes, may make the ride feel like crap (improper damping bothers me more than high spring rates, some people are the other way around).
williaty is offline   Reply With Quote
Old 04-14-2008, 11:29 AM   #18
Naito
Scooby Newbie
 
Member#: 114263
Join Date: May 2006
Chapter/Region: E. Canada
Location: Toronto
Vehicle:
2006 Impreza 2.5i
Black

Default

willaty, what struts are you running? Tokico D-Specs?
Naito is offline   Reply With Quote
Old 04-14-2008, 12:46 PM   #19
QuikWgn
Scooby Specialist
 
Member#: 108557
Join Date: Feb 2006
Chapter/Region: NWIC
Location: King County
Vehicle:
2003 PSM WRXWgn STG2
05 OBM LEGACY SDN

Default

^^^yes...same ones I run, from there our setups differ.
QuikWgn is offline   Reply With Quote
Old 04-14-2008, 12:50 PM   #20
williaty
Scooby Guru
 
Member#: 71092
Join Date: Sep 2004
Chapter/Region: MWSOC
Location: Delaware County, Ohio
Vehicle:
2005 2.5RS Wagon
Regal Blue Pearl

Default

Quote:
Quote:
Originally Posted by ButtDyno
This is the suspension tech forum, where show cars go to die.
2005 Impreza 2.5RS Wagon in Regal Blue Pearl
Basic Suspension: USDM STi Springs, Tokico D-Specs, PolTec Heavy-Duty Endlinks, Whiteline 22mm Adj RSB, Whiteline QR Rear STB, GT-Spec ALK, Whiteline Max-C Motorsport camber plates
Bushings: Full STi Group N Lateral Link, Trailing Link, and Rear Strut Mount Set, Kartboy Tranny Crossmember, TiC Comfort Rear Diff, Whiteline Steering Rack, Interestingly Hacked Outrigger Bushings
Competition: Primitive Racing 3/16ths Front Skidplate and Rear Diff Protector, Alfa Club Rally Odometer/Chronometer
Powertrain: Stromung Stainless Steel 2.25" Midpipe, DIY Ghetto-rific Catch Can, Group A Performance Lightweight Crank Pulley, Hybrid Silentake, Group A Performance Throttle Body Spacer, RomRaided
Electronics: Hawker Odyssey PC-680MJT Battery, Hella Rallye 1000 FF Driving Lights, Hella Micro DE Fog Lights, Rear Deck Light Addition, Map Light Addition, Hella Supertones, Innovate Motorsports LC-1 WBO2, OMGHAX! AFR Gauge
Rolly Bits: Summer-16" OEM wheels in Falken FK452s | Winter-16" OEM Wheels in Hankook Icebear W300s
Body: Front Grille Center Pillar Delete, DIY Big Assed d@mn Serious Rally Style Mudflaps, Obsessive Amounts of RAAMmat and Ensolite, Polyurethane front lip
ICE: Pioneer DEH-3900MP, Pioneer CD-IB100II iPod Controller, Pioneer TS-D161R 6-1/2" Kevlar 2-Ways
Interior: DIY Hypoallergenic Cabin Air Filter, GC-Lock, S204ed Center Console

Easiest way to answer your question.
williaty is offline   Reply With Quote
Old 04-14-2008, 01:29 PM   #21
Naito
Scooby Newbie
 
Member#: 114263
Join Date: May 2006
Chapter/Region: E. Canada
Location: Toronto
Vehicle:
2006 Impreza 2.5i
Black

Default

great, thanks. I'm currently running JDM STI takeoffs on my stock 2.5i struts, nice and stiff but feels floaty at times, so have been planning getting the Group-N tophats and Tokicos. Good to hear they seem to be approved
Naito 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
AGX struts and STI springs on a 2.5I woods Brakes, Steering & Suspension 19 07-06-2008 05:40 PM
AGX struts and STI springs on a 2.5I woods Brakes, Steering & Suspension 1 07-04-2008 05:17 PM
(07) STi springs on (07) 2.5i stock system? ScubaruImpreza05 Brakes, Steering & Suspension 1 05-04-2008 10:53 AM
V7 STI Springs on 06 2.5i Naito Brakes, Steering & Suspension 12 07-29-2007 06:16 PM
TEIN '06 STi Springs on '06 2.5i? Plutonium2.5i Brakes, Steering & Suspension 1 02-10-2006 09:00 AM


All times are GMT -4. The time now is 12:23 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.