If memory serves, TRD has sway bars for our cars, offered through nigel-jdm, at close to $1K. While I believe the 3IS could benefit from adjustable sway bars, the $1K price point is absolutely insane. Let's hope someone else can bring them to market for considerably less. I've yet to see any strut braces for our cars yet.
2014 IS 350 F Sport, Nebula/Rioja, RWD, BSM, Nav
2013 Mustang GT Premium, Deep Impact Blue, 6MT
3.73 gears, Boss 302S wheels,
255-40-19 Michelin Pilot Super Sports,
Bama 91 Octane Race Tune