KW Height Adjustable Spring Kit M4 // Photos, Install and Impressions

Carlos@TAG · 01-27-2016, 11:24 AM

Quote:

Originally Posted by yellowssm

OEM 19's

Yes that would work if you ran a 15mm spacer in the front.

Carlos@TAG · 01-27-2016, 11:27 AM

Quote:

Originally Posted by Monkeyboo

Anyone had this installed on their non adaptive suspension and would like to chime in as for the ride quality ? The stock Non adaptive suspension already felt like it needs more damping . I assume these springs will make it more bouncy since the springs are stiffer?

We have installed these on both suspension set ups. The ride is a little more stiff than the stock suspension. In my opinion it makes the car feel and handle better.

IC3BLAK · 02-10-2016, 09:40 AM

This is how mine turned out on the lowest setting on the fronts

Is that the lowest they go, or is something wrong? Has anybody ever experience a faulty kit?? Installer is adamant it is correctly installed.

IC3BLAK · 02-10-2016, 09:47 AM

Quote:

Originally Posted by robbys3m3

So I bought these from TAG (great price and easy to work with) a little while back and finally got everything aligned last night after having them installed for about 2 weeks. Before these I had tried H&R SS and f80 specific springs (F80s still for sale btw). While there was nothing technically wrong with either of those sets, I actually wanted less front drop and to have the rear closer to the stock height. This car splits DD duty with my truck, so while I really liked the look a little lower with the H&R's, front bumper height around Tulsa has been a major concern (and still is frankly) with our roads/inclines. I didn't think the ride was bad per say with the H&R's, but with the KW the car rides much less bumpy/choppy...especially in the rear it seems. I have passive suspension and was really regretting not finding a car with adaptive, but after installing the KW's I'm now content with the passive. The Eibach springs probably would've done the the trick for me from the get-go, but I wasn't sure when they would be released, and frankly like the ability to take this car a little lower later on if I'm not driving it on a daily basis. I'd like to thank TAG as they were very helpful with this purchase.

Looks great, i wish mine turned out like this!

supremepower · 02-10-2016, 10:09 AM

Quote:

Originally Posted by IC3BLAK

This is how mine turned out on the lowest setting on the fronts

Is that the lowest they go, or is something wrong? Has anybody ever experience a faulty kit?? Installer is adamant it is correctly installed.

Have an idea of whats going on. Shoot me an email at info@supremepower.com and I can go over the points w you and make sure the install is correct.

We sell and install a ton of these. There a couple errors that can be made on the installation if you have not dont it before.

Would be happy to assist!

IC3BLAK · 02-10-2016, 10:27 AM

Quote:

Originally Posted by supremepower

Have an idea of whats going on. Shoot me an email at info@supremepower.com and I can go over the points w you and make sure the install is correct.

We sell and install a ton of these. There a couple errors that can be made on the installation if you have not dont it before.

Would be happy to assist!

Sent you an e-mail, many thanks!

AMS1988 · 02-24-2016, 11:11 PM

I have had the same KW HAS kit since day 1 of my car...is it possible for the sleeve kit to work with any aftermarket wheels if the manufacturer gives you the correct size and offset? I got some wheels (20x10/11 all decided by the wheel manufacturer). The perch tore into the front tires due to the wrong sizing and offset and the company isn't willing to refund the full amount. Is my suspension the problem or the wheel company? Btw they knew what suspension I had before wheels were ordered and knew I had no intention of raising up the car or getting coils.

Carlos@TAG · 02-25-2016, 11:26 AM

Quote:

Originally Posted by MikeLowry

I have had the same KW HAS kit since day 1 of my car...is it possible for the sleeve kit to work with any aftermarket wheels if the manufacturer gives you the correct size and offset? I got some wheels (20x10/11 all decided by the wheel manufacturer). The perch tore into the front tires due to the wrong sizing and offset and the company isn't willing to refund the full amount. Is my suspension the problem or the wheel company? Btw they knew what suspension I had before wheels were ordered and knew I had no intention of raising up the car or getting coils.

What size tire are you running up front? Also what is the offset of the wheels?

AMS1988 · 02-25-2016, 10:30 PM

20x10 +21

CHEKM4TE · 02-26-2016, 07:32 PM

Quote:

Originally Posted by IC3BLAK

This is how mine turned out on the lowest setting on the fronts

Is that the lowest they go, or is something wrong? Has anybody ever experience a faulty kit?? Installer is adamant it is correctly installed.

which vorsteiner wheels are these ?? specs??

SEXY!

Carlos@TAG · 02-26-2016, 07:43 PM

Quote:

Originally Posted by MikeLowry

20x10 +21

A 20x10 front will rub if the KW HAS is a the lowest settings. The only way around it is to run a 20x9.5 or raise the height unfortunately.

IC3BLAK · 02-27-2016, 06:56 AM

Quote:

Originally Posted by CHEKM4TE

Quote:

Originally Posted by IC3BLAK

This is how mine turned out on the lowest setting on the fronts

Is that the lowest they go, or is something wrong? Has anybody ever experience a faulty kit?? Installer is adamant it is correctly installed.

which vorsteiner wheels are these ?? specs??

SEXY!

Vorsteiner VFF102
20x9.5 et 22 265/30 MPSS
20x10.5 et 34 295/30 MPSS

dojokoto · 03-15-2016, 04:45 PM

does this work for comp package 20" rims?

Gabe@TAG · 03-15-2016, 04:55 PM

Quote:

Originally Posted by dojokoto

does this work for comp package 20" rims?

I believe you'll have no issues.

bonsai · 03-28-2016, 02:36 PM

My main concern with KW HAS vs coils is that this:

I'm coming from an F30 with adaptive suspension (different from M Adaptive, FWIW). I was on HR SuperSport springs and noticed that the ride was a bit bouncier than I was hoping for. The drop was perfect with my Breyton 19s, but the mismatch in spring rate vs my dampers were probably to blame for the bouncier ride quality.

So, my question is this:

I get that the KW HAS will offer a stiffer, sportier ride. But how do the spring rates match up to the M Adaptive suspension dampers? Anyone noticing a bouncier ride?

phorbes · 03-28-2016, 02:42 PM

Quote:

Originally Posted by bonsai

My main concern with KW HAS vs coils is that this:

I'm coming from an F30 with adaptive suspension (different from M Adaptive, FWIW). I was on HR SuperSport springs and noticed that the ride was a bit bouncier than I was hoping for. The drop was perfect with my Breyton 19s, but the mismatch in spring rate vs my dampers were probably to blame for the bouncier ride quality.

So, my question is this:

I get that the KW HAS will offer a stiffer, sportier ride. But how do the spring rates match up to the M Adaptive suspension dampers? Anyone noticing a bouncier ride?

I've noticed a big loss in cornering capabilities over the stock suspension. I would love to know if there's dampers that would be better suited for the dropped height or I may just end up replacing them with full coilovers. I hate the idea of dropping 4k on suspension components when it rode so nicely and cornered like a go-kart from the factory.

Why can't they make it nice and low from the beginning!!!!

bonsai · 03-28-2016, 02:53 PM

Agreed. Stock height should be lower, but BMW knows they have to find a middle ground between performance oriented folks like us, and, well, everyone else.

Thanks for your feedback on cornering dynamics. Is it the bounciness that affects your cornering?

I'd appreciate everyone's thoughts on HAS ride quality. Especially if you have M adaptive suspension.

Brosef · 03-29-2016, 09:02 AM

Quote:

Originally Posted by phorbes

I've noticed a big loss in cornering capabilities over the stock suspension. I would love to know if there's dampers that would be better suited for the dropped height or I may just end up replacing them with full coilovers. I hate the idea of dropping 4k on suspension components when it rode so nicely and cornered like a go-kart from the factory.

Why can't they make it nice and low from the beginning!!!!

my guess is you need a better alignment. not sure how low you went, but if you went too low, you could have also compromised the suspension geometry beyond the point at which an alignment can compensate.

Gabe@TAG · 03-30-2016, 07:23 PM

Quote:

Originally Posted by Brosef

my guess is you need a better alignment. not sure how low you went, but if you went too low, you could have also compromised the suspension geometry beyond the point at which an alignment can compensate.

I don't think the HAS kit is capable of going low enough to affect cornering beyond the correction factor of a good alignment.

smr123 · 04-08-2016, 08:56 AM

Just a couple of added notes after having done the install. On the rear, it is not stated you will need a spring compressor to get the spring out, or to drop the lower control arm. If you choose to drop the arm, mark the camber adjuster eccentric before removal.

Also, I suggest exchanging the front set screws with soft tip nylon type (McMaster Carr 93285A316) to prevent damaging the threads with the steel set.

Robmaster · 05-12-2016, 08:11 AM

My friend and I installed the KW HAS on his M4 last weekende and since then he had some clunky nois on the rear when he drove on bumpy roads.

Every screw is fastened an double checked. It sound like the spring makes this noise.

Anyone also had this problem??

mikex25 · 05-20-2016, 12:53 AM

I only want to drop the front a bit less than half an inch and 0.25 in the rear. Is this possible with kW has?

02-10-2016, 09:40 AM	#201
IC3BLAK First Lieutenant 129 Rep 346 Posts Drives: 2015 F80 M3 DCT SO Join Date: Jun 2011 Location: United Kingdom iTrader: (0)	This is how mine turned out on the lowest setting on the fronts Is that the lowest they go, or is something wrong? Has anybody ever experience a faulty kit?? Installer is adamant it is correctly installed. Attached Images __________________ @SonicF80
	Appreciate 1 arjet18.00 Quote

02-24-2016, 11:11 PM	#205
AMS1988 Second Lieutenant 73 Rep 212 Posts Drives: '16 MW M3 Join Date: Jul 2013 Location: San Diego, CA iTrader: (1)	I have had the same KW HAS kit since day 1 of my car...is it possible for the sleeve kit to work with any aftermarket wheels if the manufacturer gives you the correct size and offset? I got some wheels (20x10/11 all decided by the wheel manufacturer). The perch tore into the front tires due to the wrong sizing and offset and the company isn't willing to refund the full amount. Is my suspension the problem or the wheel company? Btw they knew what suspension I had before wheels were ordered and knew I had no intention of raising up the car or getting coils.
	Appreciate 0 Quote

02-25-2016, 10:30 PM	#207
AMS1988 Second Lieutenant 73 Rep 212 Posts Drives: '16 MW M3 Join Date: Jul 2013 Location: San Diego, CA iTrader: (1)	20x10 +21
	Appreciate 0 Quote

03-15-2016, 04:45 PM	#211
dojokoto Private First Class 23 Rep 174 Posts Drives: 328 Join Date: Feb 2016 Location: US iTrader: (0)	does this work for comp package 20" rims?
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03-28-2016, 02:36 PM	#213
bonsai OG 3er 84 Rep 295 Posts Drives: 2016 F80 M3/2018 F82 M4 Compet Join Date: Sep 2007 Location: San Francisco, CA. iTrader: (0)	My main concern with KW HAS vs coils is that this: I'm coming from an F30 with adaptive suspension (different from M Adaptive, FWIW). I was on HR SuperSport springs and noticed that the ride was a bit bouncier than I was hoping for. The drop was perfect with my Breyton 19s, but the mismatch in spring rate vs my dampers were probably to blame for the bouncier ride quality. So, my question is this: I get that the KW HAS will offer a stiffer, sportier ride. But how do the spring rates match up to the M Adaptive suspension dampers? Anyone noticing a bouncier ride?
	Appreciate 0 Quote

03-28-2016, 02:53 PM	#215
bonsai OG 3er 84 Rep 295 Posts Drives: 2016 F80 M3/2018 F82 M4 Compet Join Date: Sep 2007 Location: San Francisco, CA. iTrader: (0)	Agreed. Stock height should be lower, but BMW knows they have to find a middle ground between performance oriented folks like us, and, well, everyone else. Thanks for your feedback on cornering dynamics. Is it the bounciness that affects your cornering? I'd appreciate everyone's thoughts on HAS ride quality. Especially if you have M adaptive suspension.
	Appreciate 0 Quote

04-08-2016, 08:56 AM	#218
smr123 Private First Class 63 Rep 132 Posts Drives: '17 M3 mg/so Join Date: Nov 2015 Location: vernon hills, il iTrader: (0)	Just a couple of added notes after having done the install. On the rear, it is not stated you will need a spring compressor to get the spring out, or to drop the lower control arm. If you choose to drop the arm, mark the camber adjuster eccentric before removal. Also, I suggest exchanging the front set screws with soft tip nylon type (McMaster Carr 93285A316) to prevent damaging the threads with the steel set.
	Appreciate 0 Quote

05-12-2016, 08:11 AM	#219
Robmaster Colonel 151 Rep 2,757 Posts Drives: 2010 E82 135, 2005 E87 130i Join Date: Apr 2007 Location: Switzerland iTrader: (3)	My friend and I installed the KW HAS on his M4 last weekende and since then he had some clunky nois on the rear when he drove on bumpy roads. Every screw is fastened an double checked. It sound like the spring makes this noise. Anyone also had this problem??
	Appreciate 0 Quote

05-20-2016, 12:53 AM	#220
mikex25 Major 397 Rep 1,204 Posts Drives: Grey thing Join Date: Apr 2007 Location: San Jose iTrader: (4)	I only want to drop the front a bit less than half an inch and 0.25 in the rear. Is this possible with kW has?
	Appreciate 1 FSociety3812.50 Quote