Those RE toe links suck! The spherical bearings wear out fast and get noisy. RE/HPA won't replace them either; well they will for $30. ea. See my RE toe link thread on E90post.
Megan Racing sells rear toe links with ball joints and no one has complained about them being noisy.
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