Suspension advice on M8?

Tethys · 07-14-2022, 12:13 PM

Quote:

Originally Posted by r33_RGSport

Well, wrong adjustment is also part of installation issue.
I've also seen a few where installer just grab and slap. Not even double checking the part# and just assume.
I can say that, because all the KW HAS that I've done been perfectly fine. Unfortunately, most of them are GranCoupe.
I only done a few Coupe and Convertible on H&R or MSS.

I'm having it raised an 1/8th of an inch in the rear to see if it helps, I'll know this afternoon.

xmanpro · 07-15-2022, 12:07 AM

From what I remember, KW HAS on mine feels a little softer than stock but I've got a 2021 GC. Not sure if suspension tuning changed on later year models.

Tethys · 07-15-2022, 06:42 AM

After having the rear raised about an 1/8th of an inch it rides much better now, it still feels like a lowered car, meaning it feels stiffer than stock and a tad bouncy but not as bad and tolerable now.

r33_RGSport · 07-15-2022, 08:53 AM

Quote:

Originally Posted by Tethys

After having the rear raised about an 1/8th of an inch it rides much better now, it still feels like a lowered car, meaning it feels stiffer than stock and a tad bouncy but not as bad and tolerable now.

Maybe you'll need them to double check the springs. Front and rear springs looks the same and will be interchangeable. What differentiate them just the part# stamped on the spring.

Tethys · 07-15-2022, 08:54 AM

Quote:

Originally Posted by r33_RGSport

Maybe you'll need them to double check the springs. Front and rear springs looks the same and will be interchangeable. What differentiate them just the part# stamped on the spring.

That's interesting, I'll look into that. Thanks.

Padfan9 · 07-16-2022, 01:25 AM

Quote:

Originally Posted by Tethys

After having the rear raised about an 1/8th of an inch it rides much better now, it still feels like a lowered car, meaning it feels stiffer than stock and a tad bouncy but not as bad and tolerable now.

How low is it from stock now? I just don't want to spend 2K for half an inch drop.

Tethys · 07-16-2022, 05:44 AM

Quote:

Originally Posted by Padfan9

How low is it from stock now? I just don't want to spend 2K for half an inch drop.

Honestly not much lower, these cars already sit pretty low and I thought it was lowered when I bought it.

Kurator · 12-07-2022, 06:58 PM

Quote:

Originally Posted by moonM8

I personally like KW more. I have the Variant 4s but if you don't want to spend that much a lot of the M8 guys ride HAS. r33_RGSport can give you his insight and help you out.

Hello mate!
Quick question for you. I have same wheels as you:

21-inch size
Front 21x10 16
Rear 21x11 23
Wheel: P200

So I am planning to order KW V4 kit. What settings do you recommend for the front and rears?

Dasky_spas · 06-18-2023, 10:55 PM

I'm looking at the KW adj springs for my m850i. I'm running m8 wheels so the wheel gap is mostly closed.

What's the minimal amount of drop you can get with this kit? I'm looking to do a super slight drop, like .375 in front and .5 in rear. A bit stiffer would be great.

MacLean_007 · 06-24-2023, 01:21 PM

I put KW HAS right away on my 23 M8 GC Comp, I have had zero issues and all most a year with the car. My M8 is sitting on 21’s all around. I just recently bought a 23 X5 M Comp about three months ago. I put KW HAS and no issues to report.

lowercase_m · 06-24-2023, 01:51 PM

Is it true the only way to access top of rear strut is through the rear deck and seatbelt assembly?

lowercase_m · 06-24-2023, 09:44 PM

Quote:

Originally Posted by lowercase_m

Is it true the only way to access top of rear strut is through the rear deck and seatbelt assembly?

Oh I found my answer
removing rear spring on m850

evanaswan · 10-25-2023, 01:49 PM

Think I'm going to lower my 2024 GC M8 with the KW HAS. I did H&R on my x5m and it's too jarring for me.

Had MMS on my x6m and loved them. Those of you who put KW on the GC. Happy? I've read mixed opinions. Softer than stock and or stiffer.

And I was told just to install was $2500 due to the labor length for the job. What have you all paid to install if not done yourself.

BrntRubber · 01-03-2024, 04:20 PM

Quote:

Originally Posted by evanaswan

Think I'm going to lower my 2024 GC M8 with the KW HAS. I did H&R on my x5m and it's too jarring for me.

Had MMS on my x6m and loved them. Those of you who put KW on the GC. Happy? I've read mixed opinions. Softer than stock and or stiffer.

And I was told just to install was $2500 due to the labor length for the job. What have you all paid to install if not done yourself.

I have MSS on my f90 m5. I LOVE IT!!!

Dasky_spas · 01-03-2024, 04:29 PM

I went with KW v3- what a difference, even without adjusting height or damper/ rebound!

07-15-2022, 12:07 AM	#24
xmanpro Lieutenant Colonel 3172 Rep 1,849 Posts Drives: 24 M8C 24 X6MC 21 M3C Join Date: Oct 2012 Location: Bay Area CA iTrader: (0)	From what I remember, KW HAS on mine feels a little softer than stock but I've got a 2021 GC. Not sure if suspension tuning changed on later year models. __________________ 2024 M8C; 2024 X6MC; 2021 G80 M3C; 2022 P992140 RETIRED: 2021 F93, 2021 F96,2019 F82 M4C, 2018 F80 M3C, 2018 F86 X6M- black fire, 2015 F13 M6, 2015 F10 M5, 2012 F10 550i M-Sport, 2012 F13 650i X-Drive, 2009 E60 535i M-Sport, 2007 E60 530i
	Appreciate 2 r33_RGSport13037.50 FlorinQCK-2.50 Quote

07-15-2022, 06:42 AM	#25
Tethys Lieutenant 406 Rep 421 Posts Drives: BMW M4 Comp, 330i, Camaro SS Join Date: Nov 2021 Location: Bartlett, TN iTrader: (0) Garage List 2022 BMW M4 Competiton [0.00]	After having the rear raised about an 1/8th of an inch it rides much better now, it still feels like a lowered car, meaning it feels stiffer than stock and a tad bouncy but not as bad and tolerable now.
	Appreciate 1 FlorinQCK-2.50 Quote

06-18-2023, 10:55 PM	#31
Dasky_spas Lieutenant 147 Rep 548 Posts Drives: Bmw Join Date: Mar 2023 Location: NYC iTrader: (0)	I'm looking at the KW adj springs for my m850i. I'm running m8 wheels so the wheel gap is mostly closed. What's the minimal amount of drop you can get with this kit? I'm looking to do a super slight drop, like .375 in front and .5 in rear. A bit stiffer would be great.
	Appreciate 0 Quote

06-24-2023, 01:21 PM	#32
MacLean_007 Private First Class 314 Rep 187 Posts Drives: 20 X5 M50i, 23 M8 Comp GC Join Date: Feb 2022 Location: TX iTrader: (0)	I put KW HAS right away on my 23 M8 GC Comp, I have had zero issues and all most a year with the car. My M8 is sitting on 21’s all around. I just recently bought a 23 X5 M Comp about three months ago. I put KW HAS and no issues to report.
	Appreciate 0 Quote

06-24-2023, 01:51 PM	#33
lowercase_m New Member 20 Rep 7 Posts Drives: G15 Join Date: Jun 2023 Location: Colorado iTrader: (0)	Is it true the only way to access top of rear strut is through the rear deck and seatbelt assembly?
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10-25-2023, 01:49 PM	#35
evanaswan Yngwie J Malmsteen 27 Rep 68 Posts Drives: F93 M8 GC - G07 X7 Join Date: Feb 2018 Location: Native Orange County moved to Lake Wylie SC iTrader: (0)	KW HAS Think I'm going to lower my 2024 GC M8 with the KW HAS. I did H&R on my x5m and it's too jarring for me. Had MMS on my x6m and loved them. Those of you who put KW on the GC. Happy? I've read mixed opinions. Softer than stock and or stiffer. And I was told just to install was $2500 due to the labor length for the job. What have you all paid to install if not done yourself.
	Appreciate 0 Quote

01-03-2024, 04:29 PM	#37
Dasky_spas Lieutenant 147 Rep 548 Posts Drives: Bmw Join Date: Mar 2023 Location: NYC iTrader: (0)	I went with KW v3- what a difference, even without adjusting height or damper/ rebound!
	Appreciate 0 Quote