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H&R would be the first thing to go.
If you still have some issue, check your tires to see if it's RFT or not.
I used to have non-runflats then changed back to OEM run flats and noticed a lot different in the softness of the ride esp. on the bumps.
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PAST: F80 M3 ZCP | 911.1 C2S | F10 M5 ZCP | E70 X5M | E90 M3 | E46 M3 | E36 M3 |