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      02-03-2019, 08:11 AM   #1
symple84
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Suspension for CS

Any M3 owners lower their CS yet? I've seen some debate about the KW HAS kit not being compatible with the M3 CS.
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      02-03-2019, 08:32 AM   #2
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Originally Posted by symple84 View Post
Any M3 owners lower their CS yet? I've seen some debate about the KW HAS kit not being compatible with the M3 CS.
KW HAS is type approved for the M3cs. It's the MP HAS that isn't. Not being"type approved" doesn't mean it's not compatible though.
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      02-03-2019, 08:47 AM   #3
symple84
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Quote:
Originally Posted by CanAutM3 View Post
KW HAS is type approved for the M3cs. It's the MP HAS that isn't. Not being"type approved" doesn't mean it's not compatible though.
Thanks! Did you get a chance to compare the stock vs MP HAS suspension?
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      02-03-2019, 11:54 AM   #4
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There was a guy in the UK with an M4CS and he fitted KW has and he swapped back cause he didn’t like the way it drove. He’s now in an M3CS and has left it alone, saying it’s too good to start changing and messing up.

The part of me that modifies every car I own would love to lower mine, but I’m not giving in, as it’s so damn good!
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      02-03-2019, 12:10 PM   #5
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      02-03-2019, 02:56 PM   #6
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Originally Posted by symple84 View Post
Thanks! Did you get a chance to compare the stock vs MP HAS suspension?
Yes, I drove it for 3 weeks on the stock suspension before I installed the HAS. It has to be noted that I installed GC camber plates in conjunction with the MP-HAS.

I find the handling improved noticeably with the MP-HAS and GC camber plates where the car has less roll, much crisper turn-in and better overall grip due the lower center of gravity. However, the MP-HAS when paired with the GC camber plates have significantly increased NVH which has taken away a fair bit of the refinement of the stock CS setup. Besides the increased NVH, the MP-HAS feel just as comfortable as the stock CS springs.
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      02-03-2019, 03:00 PM   #7
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For the sake of the OP and in reference to the M3 CS with MP HAS discussion, you have fitted the MP HAS to your M4 CS, not an M3 CS where the feedback you provide may differ.

Interesting point on the NVH increase.
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      02-03-2019, 03:00 PM   #8
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Quote:
Originally Posted by CanAutM3 View Post
Yes, I drove it for 3 weeks on the stock suspension before I installed the HAS. It has to be noted that I installed GC camber plates in conjunction with the MP-HAS.

I find the handling improved noticeably with the MP-HAS and GC camber plates where the car has less roll, much crisper turn-in and better overall grip due the lower center of gravity. However, the MP-HAS when paired with the GC camber plates have significantly increased NVH which has taken away a fair bit of the refinement of the stock CS setup. Besides the increased NVH, the MP-HAS feel just as comfortable as the stock CS springs.
I know they are different cars, any input on the Eibachs on your old car vs MP HAS on the CS?
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      02-03-2019, 03:02 PM   #9
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Quote:
Originally Posted by Colinv6 View Post
There was a guy in the UK with an M4CS and he fitted KW has and he swapped back cause he didn’t like the way it drove. He’s now in an M3CS and has left it alone, saying it’s too good to start changing and messing up.

The part of me that modifies every car I own would love to lower mine, but I’m not giving in, as it’s so damn good!
Great into Colin!

I’m very tempted to try anything to remove from wheel gap, but it has to have a minimal impact to the stock ride. Certainly not set it backwards with bouncing on rebound, etc.
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      02-03-2019, 05:46 PM   #10
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I second the sentiment on the NVH regarding the camber plates. Would be great if there was a fixed option with a polyurethane bushing.

What I hear sounds like hollow wheels humming. Basically it's as if the lack of insulation between the road, wheels and tires create a high pitch humming noise.
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