It's interesting... I've reached out to H&R, Eibach, and Dinan and all 3 have kind of avoided whether or not other model xDrive springs will fit,Or if the RWD also fits xDrive. Although I reached out to MSS (a much higher grade spring system) who is manufactured by eibach and their F22/F87 set will work on RWD or xDrive variants. The people at MSS were also very very helpful!
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