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      05-28-2021, 05:29 PM   #1
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KW Height Adjustable Spring Kit HAS - G80 M3 | G82 M4 2021 +

KW Suspensions made height adjustable spring kits exclusively for the high power and performance-driven 2021+ BMW M4 (G82) and 2021+ BMW M3 (G80)! Providing more driving dynamics in OEM quality, the KW Suspensions chrome-silicon steel lowering springs, matching elastomers, and dust protection systems are used in this vehicle-specific solution, so you can experience full control of your BMW’s sleek style and advanced performance.

Features:

* Lowers your M4 between 15-30mm in the front and 5-20mm in the rear.

* Lowers your M3 between 10-25mm in the front and 5-20mm in the rear.

* HAS springs offer continuous ride height adjustment.

* High-quality springs made of chrome-silicon steel with spring rates designed specifically for each respective OE suspension damper and wheel load.

Application: 2021 BMW M3 | M4
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      05-28-2021, 08:06 PM   #2
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When are they arriving?
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      05-28-2021, 08:24 PM   #3
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Damn I dont think 20mm is going to be enough in the back
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      06-02-2021, 12:54 PM   #4
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Quote:
Originally Posted by LBbluem2 View Post
Damn I dont think 20mm is going to be enough in the back
my exact thoughts... hope I don't have to drop 5k on kw v3s lol
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      06-02-2021, 06:16 PM   #5
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Ordering these frome TireRack, they are saying 12 week lead right now.
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      06-02-2021, 11:07 PM   #6
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Quote:
Originally Posted by LBbluem2 View Post
Damn I dont think 20mm is going to be enough in the back
Seriously. M4 needs rear drop 25-30mm for me and I'm conservative. H&R or MSS it is. Will MSS come out with a fixed spring set?
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      06-03-2021, 10:41 AM   #7
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Quote:
Originally Posted by Transfer View Post
Seriously. M4 needs rear drop 25-30mm for me and I'm conservative. H&R or MSS it is. Will MSS come out with a fixed spring set?
Yeah I had the KW HAS on order but switching to MSS. They are in stock tomorrow so bonus is I will have faster as well(KW HAS keeps getting pushed back).
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      06-03-2021, 11:04 AM   #8
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Quote:
Originally Posted by BSM_G808 View Post
Quote:
Originally Posted by Transfer View Post
Seriously. M4 needs rear drop 25-30mm for me and I'm conservative. H&R or MSS it is. Will MSS come out with a fixed spring set?
Yeah I had the KW HAS on order but switching to MSS. They are in stock tomorrow so bonus is I will have faster as well(KW HAS keeps getting pushed back).
I think I'll do the same
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      06-03-2021, 11:10 AM   #9
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Quote:
Originally Posted by BSM_G808 View Post
Yeah I had the KW HAS on order but switching to MSS. They are in stock tomorrow so bonus is I will have faster as well(KW HAS keeps getting pushed back).
Where are they in stock? I have been contacting some suppliers which they have no ETA.
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      06-03-2021, 12:41 PM   #10
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Quote:
Originally Posted by tsixtial View Post
Where are they in stock? I have been contacting some suppliers which they have no ETA.
Apologies to the OP, did not realize this was a shop that was promoting the KW HAS. I sent you a PM on who to contact.
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      06-09-2021, 08:23 AM   #11
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Quote:
Originally Posted by Transfer View Post
Quote:
Originally Posted by LBbluem2 View Post
Damn I dont think 20mm is going to be enough in the back
Seriously. M4 needs rear drop 25-30mm for me and I'm conservative. H&R or MSS it is. Will MSS come out with a fixed spring set?
Do the h&r springs drop them lower then the HAS kit?
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      06-09-2021, 10:14 AM   #12
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Quote:
Originally Posted by tommydieselm3 View Post
Do the h&r springs drop them lower then the HAS kit?
Supposedly 30mm front and rear according to this:
https://www.hrsprings.com/applicatio...ts/4/2413/2021
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      06-09-2021, 10:34 AM   #13
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Quote:
Originally Posted by tommydieselm3 View Post
Quote:
Originally Posted by Transfer View Post
Quote:
Originally Posted by LBbluem2 View Post
Damn I dont think 20mm is going to be enough in the back
Seriously. M4 needs rear drop 25-30mm for me and I'm conservative. H&R or MSS it is. Will MSS come out with a fixed spring set?
Do the h&r springs drop them lower then the HAS kit?
I think you loose the EDC with springs though? Maybe I'm wrong?

Seems like a properly developed HAS kit is a much better solution than a basic spring kit if so
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      06-09-2021, 11:08 AM   #14
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Quote:
Originally Posted by barryc365 View Post
I think you loose the EDC with springs though? Maybe I'm wrong?

Seems like a properly developed HAS kit is a much better solution than a basic spring kit if so
both options retain EDC... a true full coilover system will replace the damper as well (EDC is the damper)
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      06-09-2021, 11:13 AM   #15
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Quote:
Originally Posted by Transfer View Post
Supposedly 30mm front and rear according to this:
https://www.hrsprings.com/applicatio...ts/4/2413/2021
in that case it drops lower then the KW HAS kit. HAS kit doesn't seem to drop much.
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      06-09-2021, 11:18 AM   #16
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Quote:
Originally Posted by tommydieselm3 View Post
in that case it drops lower then the KW HAS kit. HAS kit doesn't seem to drop much.
On the M3 it appears (I use this term because Ive had so many KW's where it exceeded the posted amount) that its a max of 20mm under their specs. This could be the max they suggest to be compliant with the EDC.

I know one thing, the spring rates on the KW have always been more optimal with EDC than that of the "two stage" H&R's.

EG: I am dropped 20mm with KW HAS on my M8 but in reality I can go another half an inch but they suggest not (there are threads left):

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Last edited by Vic55; 06-09-2021 at 12:52 PM..
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      06-09-2021, 03:33 PM   #17
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I like the KW's and have a set ordered from Auto Talent for mid-July delivery. 30mm front and 20mm rear is fine with me. I had KW's on my M8 Competition and was happy with them. I've had H&R on other cars that I have owned and they were fine but I like the adjustability of KW.
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      06-10-2021, 09:31 AM   #18
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Quote:
Originally Posted by Vic55 View Post
Quote:
Originally Posted by tommydieselm3 View Post
in that case it drops lower then the KW HAS kit. HAS kit doesn't seem to drop much.
On the M3 it appears (I use this term because Ive had so many KW's where it exceeded the posted amount) that its a max of 20mm under their specs. This could be the max they suggest to be compliant with the EDC.

I know one thing, the spring rates on the KW have always been more optimal with EDC than that of the "two stage" H&R's.

EG: I am dropped 20mm with KW HAS on my M8 but in reality I can go another half an inch but they suggest not (there are threads left):

Beautiful car!
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      06-10-2021, 09:33 AM   #19
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I just ordered H&R springs.... excuse my ignorance but I saw wheel spacer(don't remember the brand) do they help at all? Height looks ride?
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      06-10-2021, 10:13 AM   #20
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Quote:
Originally Posted by Molina330 View Post
I just ordered H&R springs.... excuse my ignorance but I saw wheel spacer(don't remember the brand) do they help at all? Height looks ride?
The spacers will push the wheel towards the fender so you dont have the "tucked" look, especially after a drop on your G82.

There should be a few threads in the "wheel" section on spacers with pics.
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      09-17-2021, 07:39 PM   #21
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      10-12-2021, 05:49 PM   #22
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Last edited by AutoTalent; 10-12-2021 at 05:59 PM..
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