1. 12 Jan 2021 at 10:41 PM #1
    toplad

    toplad Standard amice donned

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    I'm really interested in the M3 CS.

    Does anyone know the difference in the suspension on the CS compared to the standard/Comp
    Parts, spring rates, anti roll bar etc?
     
  2. 13 Jan 2021 at 9:10 AM #2
    Yas Man

    Yas Man Wearing official crakows

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    Pretty sure ARBs are the same, spring rates are slightly different (I think) but most of it's in the mapping of EDC.

    I can tell you after having 3 M4s and an M3 (all F8X) the M4CS and M3CS feel very different to drive, even with the Cup2s removed.
     
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  3. 13 Jan 2021 at 1:03 PM #3
    ASRman

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    I'm sure I read the ARBs on competition cars are uprated/stiffer whilst the CS uses standards. I may be wrong however.
     
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  4. 13 Jan 2021 at 1:37 PM #4
    JonD999

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    An relatively easy way, albeit a bit time consuming is look at the part numbers on realoem

    whilst realoem doesn’t list the part numbers for CP springs if you google the CS part numbers it returns results saying M4, judging buy the number of returns i would say they the same and the differences are in the EDC programming
     
    Last edited: Jan 13, 2021
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  5. 13 Jan 2021 at 1:52 PM #5
    Alex0

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    Yes I thought this too, think it might be front ARBs are from a standard car. Then onward from this a software tweak.

    I had the CS EDC setting loaded on my M4 comp but didn't get on with it to fidgety at the front. This isn't to say how a CS feels.
     
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  6. 13 Jan 2021 at 2:02 PM #6
    JonD999

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    Front part numbers are the same for a CP & CS, the rear has a different number.
     
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  7. 13 Jan 2021 at 2:09 PM #7
    Lowfinger

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    Guy on Bimmerpost came up with this info:

    M3 Chassis variants suspension hardware

    Base/CP/CS:
    • Front Springs B / C / B
    • Rear Springs B / C / B
    • Front Swaybar B / C / B
    • Rear Swaybar B / C / C
    • Front damper B / C / C
    • Rear Damper B / B /B
     
  8. 13 Jan 2021 at 10:33 PM #8
    Socrates

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