Whiteline Rear Anti Roll Bar - 20mm Adjustable - Celica GT4 ST185 & ST205Whiteline Rear Anti Roll Bar for Celica GT4 ST185 & ST205 20mm Adjustable Genuine Whiteline anti roll bars (sway bars) are supplied in our signature "Silver Sparkle II" metallic powder coat. Whiteline anti roll bars come complete with bushes and brackets where neccessary. Fensport Tip: The fitting of larger anti roll bars (rear and in general) has two main effects, vehicle balance in terms of understeer and oversteer, and increased roll resistance.