^ have you driven an e90 with fsd's? I see you keep recommending them. I had em for 2 yrs. they're nice but crash through their stroke and provide minimal damping if you hit a sharp bump or pothole hard.
Op- as others said, save your money. That m3 brace won't do a thing for your handling. Dampers and springs will.
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