[trackjunkie61]

Recently traded in my 2011 M3 for a certified 2015 M235i. As my DD, I enjoy the smaller size, torque, cup holders and warranty. What I am unhappy about is the bouncy harsh lively ride quality.

I have a fully track prepped E36 that I would rather drive on bumpy roads over the F22. The magnetic suspension in my E92 actually made a difference based on the setting. I find very little discernible difference between comfort, sport and sport +. The rebound on the mag shocks makes for a harsh ride. I can handle firm.

Any solutions?

[Dylan86]

Yea the damping is really "off" on these cars, rear is extremely under-damped. It's one of the reasons I decided to use full coilovers..

They're not "mag" shocks, though. They are a valve based shock/strut just like most OEM's. Mag ride is usually for $80k+ cars, new. Probably would have made the F22 too good if they used them, lol

[delvec03]

are you running run flats? stiff sidewall can make the ride quite a bit more stiff compared to air.

[trackjunkie61]

Thanks for the replies, any suggestions on spring rates for coilovers?

[trackjunkie61]

Has anybody tried different bump stops with any success?

[cxp213]

Yep, these cars have terrible valving from factory. Dinan sells shorter ones from some E-series car, but won't help you.

I'm not sure why, but it seems like spring rates are kept as secrets from what I've seen, although I haven't checked too hard and could be wrong.

[Dylan86]

Originally Posted by trackjunkie61

Thanks for the replies, any suggestions on spring rates for coilovers?

The KW Clubsports come with linear Front 457 lbs/inch, Rear 685 lbs/inch springs/rates. I'm running them with 50lbs lighter Swift springs. Hope that helps

D