Nah I don't see how it would be. The subframe mounts are in a different part of the chassis. The swaybars only have issue with the mounting tabs of the bracket but don't pull on the subframe mounts at all.
OEM CSL WHEELS - OEM CSL BRAKES - OEM AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AUTOSOLUTIONS SSK
CF CSL RACE LIP - NAVI HU - BMW PERFORMANCE CF STRUT BAR - BMW GROUP-N MTRMTS - UUC SS BRAKELINES, TRANS MOUNTS, RTABs - 4.10 BMW M-SPORT DIFF