I posted this a while back......>> But it is probably lost in history now. Anti-Swaybars Nissan Part #'s Front Diameters 54611-33P20 27.2mm US 2S NA/TT & JAP 4S TT & EURO 4S TT 54611-33P21 28.6mm US 4S NA & JAP 4S NA & AUS 4S NA Rear Diameters 56230-33P06 15.9mm US 2S NA 56230-33P20 21.0mm US 4S NA & JAP 4S TT & AUS 4S NA 56230-33P10 25.4mm US 2S TT & EURO 4S TT
350Z I measured a 350 Zed front sway bar today that was on the hoist and looked very fat. They are 34mm front, I did not weight the rear and hollow. They also have carbon tail shaft and full alloy control arms front and rear and rear cradle. They still have mild steel cross member so still behind Toyota and others there as most Jap and European cars have had lighter alloy cross members for years now.