Sway Bar affects the handling and the car's over steer and under steer. It ties the lower suspension links together across the front or back, will keep your car flat in turns instead of leaning over to one side. Hardrace sway bars provide better control especially at high speeds cornering. Designed for OE direct replacement. Hollow internal structure. Heat treated, adjustable type (2 holes). Correction of under or oversteer. Improve more grip and better handling . Increased stability while during high speed cornering  Note: 19 mm, 3 PCS/SET For GS300 98-05 use For GS400 98-00 use For GS430 01-05 use  Fits: Lexus GS 2nd JZS160 1998-2005 Toyota Aristo JZS16 1997-2004 Toyota Crown majesta JZS, UZS 17# 99-04