I had these toe arms installed in the beginning of March and haven't hit any major potholes or sharp bumps since. The spherical joints have already become loose in 3 months and make an intermittent clunking noise over certain frequency bumps. Neither RE nor HPA warranty spherical joints and consider them a wear item like brake pads. Replacement joints cost $30. each (2 per arm) plus labor if you don't diy.
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, Koni/M3 susp, Apex Arc 8, Mich PSS