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OEM shocks were never designed to coexist with lowered springs. All shocks have to travel the entire range for internal valve system to work as expected. These lowered springs will lead to faster shock wear & tear. Only time will tell.
There are great non-adaptive coilovers and installation of EDC Delete kit (which will tell adaptive ECU that all is well) is the standard procedure. Others choose to code EDC functionality out. It's also an option but dealer programming will negate any user-applied coding.
If you have to retain adaptive suspension and want to eliminate xDrive "fender gap", ACS springs are a better choice.
Examining all choices:
1. No changes. If the suspension height is acceptable, wait until the shocks need to be replaced. Focus on coilovers options.
2. Non adaptive coilovers with EDC Delete kit
3. Adaptive coilovers which use BMW OEM sport / comfort button. Not sure if these are even available. There is entire thread about Bilstein Damptronic coilovers, delayed many times.
4. Adaptive coilovers which require a separate controller (usually an app)
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