E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > ST VS KW V1 Coilovers



Reply
 
Thread Tools Search this Thread
      02-02-2018, 11:23 AM   #1
SnapCoupe
BMW Portland
United_States
225
Rep
524
Posts

Drives: Z4M Coupe/E90 335i
Join Date: May 2015
Location: Portland, OR

iTrader: (0)

ST VS KW V1 Coilovers

I know this topic has been debated before, but I feel like I have some unanswered questions.

I plan on purchasing coilovers in Spring, and I do not want to cheap out, as I have done that before with expected results. The coils will be going on a car that is double duty (daily driver, and summer track events) so I would like something pretty robust and that wont start leaking/blow out in 10k miles. From my understanding the ST coilovers are the same as the KW V1 in every respect except the type of material used for the bodies. ST is galvanized, and KW is 100% rust free.

I live in the PNW and we RARELY salt around here. The car does get driven in the winter months, but it will never see snow. Considering this, is it worth saving the $450 going with the ST's? Or are the KWs the better buy? I don't mind spending the extra $$$ but I just want to make sure there is actual value behind it.

Also, Fortune 500's are on my radar aswell.
__________________
2011 335i N55/6MT/M-Sport
MHD Stage 2+, VRSF Downpipe, VRSF 7" FMIC, BMS Intake, BMS Chargepipe, Performance Exhaust Mod, F10 550i Clutch, BMS CDV, BMW Performance SSK, M3 Control Arms, ST Coilovers, Apex ARC-8 wheels, Michelin PS4S
Appreciate 0
      02-02-2018, 11:50 AM   #2
atmosphericM
Basic Bimmer
United_States
523
Rep
930
Posts

Drives: E92 328i 6MT ///M
Join Date: Sep 2017
Location: B'ham

iTrader: (1)

Garage List
This may not help much but I was very happy with my ST's on my VW R32. That said, I only had them for a few thousand miles before I sold her, and I live in the sunny South. Anyway, they rode very well while I had them, and I had the rears as low as they'd go.

That said, my two cents says go with KW or something else 100% rust free if you get a snow much.
Appreciate 0
      02-02-2018, 04:48 PM   #3
chris@strutmonkey
Banned
United_States
127
Rep
245
Posts

Drives: 2007 BMW 335i
Join Date: Dec 2009
Location: Northern Virginia

iTrader: (0)

If you do not care about a bit of ugly rust over time, get the ST. Everything else is the same except shock body...

Name:  e90 st coilover kit.JPG
Views: 4928
Size:  145.1 KB


Quote:
Originally Posted by SnapCoupe View Post
I know this topic has been debated before, but I feel like I have some unanswered questions.

I plan on purchasing coilovers in Spring, and I do not want to cheap out, as I have done that before with expected results. The coils will be going on a car that is double duty (daily driver, and summer track events) so I would like something pretty robust and that wont start leaking/blow out in 10k miles. From my understanding the ST coilovers are the same as the KW V1 in every respect except the type of material used for the bodies. ST is galvanized, and KW is 100% rust free.

I live in the PNW and we RARELY salt around here. The car does get driven in the winter months, but it will never see snow. Considering this, is it worth saving the $450 going with the ST's? Or are the KWs the better buy? I don't mind spending the extra $$$ but I just want to make sure there is actual value behind it.

Also, Fortune 500's are on my radar aswell.
Appreciate 0
      02-05-2018, 05:58 PM   #4
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3455
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by SnapCoupe View Post
I know this topic has been debated before, but I feel like I have some unanswered questions.

I plan on purchasing coilovers in Spring, and I do not want to cheap out, as I have done that before with expected results. The coils will be going on a car that is double duty (daily driver, and summer track events) so I would like something pretty robust and that wont start leaking/blow out in 10k miles. From my understanding the ST coilovers are the same as the KW V1 in every respect except the type of material used for the bodies. ST is galvanized, and KW is 100% rust free.

I live in the PNW and we RARELY salt around here. The car does get driven in the winter months, but it will never see snow. Considering this, is it worth saving the $450 going with the ST's? Or are the KWs the better buy? I don't mind spending the extra $$$ but I just want to make sure there is actual value behind it.

Also, Fortune 500's are on my radar aswell.
Same thing, only difference is the Galvanized VS stainless steel.

Only value is aesthetics and longevity of corrosion.

How long you keeping the car?
Appreciate 0
      02-06-2018, 03:23 PM   #5
SnapCoupe
BMW Portland
United_States
225
Rep
524
Posts

Drives: Z4M Coupe/E90 335i
Join Date: May 2015
Location: Portland, OR

iTrader: (0)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Same thing, only difference is the Galvanized VS stainless steel.

Only value is aesthetics and longevity of corrosion.

How long you keeping the car?
Probably for 2 more years. I live in a place that doesn't salt, so would there even be that much corrosion in that case?
__________________
2011 335i N55/6MT/M-Sport
MHD Stage 2+, VRSF Downpipe, VRSF 7" FMIC, BMS Intake, BMS Chargepipe, Performance Exhaust Mod, F10 550i Clutch, BMS CDV, BMW Performance SSK, M3 Control Arms, ST Coilovers, Apex ARC-8 wheels, Michelin PS4S
Appreciate 0
      02-06-2018, 04:05 PM   #6
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3455
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by SnapCoupe View Post
Probably for 2 more years. I live in a place that doesn't salt, so would there even be that much corrosion in that case?
Probably not, unless you drive in a lot of rain.
Appreciate 0
      02-07-2018, 11:03 AM   #7
SnapCoupe
BMW Portland
United_States
225
Rep
524
Posts

Drives: Z4M Coupe/E90 335i
Join Date: May 2015
Location: Portland, OR

iTrader: (0)

Quote:
Originally Posted by Jeff@TopGearSolutions View Post
Probably not, unless you drive in a lot of rain.
Yeah, LOTS of rain. Probably 60% of my driving is in the rain up here in the PNW. The galvanization doesn't protect from mild rain-related corrosion?
__________________
2011 335i N55/6MT/M-Sport
MHD Stage 2+, VRSF Downpipe, VRSF 7" FMIC, BMS Intake, BMS Chargepipe, Performance Exhaust Mod, F10 550i Clutch, BMS CDV, BMW Performance SSK, M3 Control Arms, ST Coilovers, Apex ARC-8 wheels, Michelin PS4S
Appreciate 0
      02-07-2018, 12:01 PM   #8
Blueeyesredpanda
Major
Blueeyesredpanda's Avatar
Canada
411
Rep
1,425
Posts

Drives: E90 / F30
Join Date: Sep 2016
Location: Canada

iTrader: (-2)

Is it possible to use ceramic coating or any protection layer like clear coat to cover up the shocks?
Appreciate 0
      02-12-2018, 04:43 PM   #9
Jeff@TopGearSolutions
Jeff@TopGearSolutions's Avatar
United_States
3455
Rep
79,211
Posts

Drives: C6 Z06, 09 335i, 10 335xi
Join Date: Dec 2008
Location: www.TopGearSolutions.com

iTrader: (37)

Quote:
Originally Posted by SnapCoupe View Post
Yeah, LOTS of rain. Probably 60% of my driving is in the rain up here in the PNW. The galvanization doesn't protect from mild rain-related corrosion?
It does but like any galvanized metal over time it just won't stand up to what a stainless steel product does in comparison. Then again, they aren't just going to fall off after a year they just won't look as pretty

Quote:
Originally Posted by Blueeyesredpanda View Post
Is it possible to use ceramic coating or any protection layer like clear coat to cover up the shocks?
I use to get some clear coat at that auto parts store and throw a couple coats on any suspension components for an extra layer of protection.
Appreciate 0
Reply

Bookmarks


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



All times are GMT -5. The time now is 09:20 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST