Whiteline Rear Sway Bar 22mm - 2015+ WRX / 2015+ STI Gauges Progressive Spring Rate Design

Progressive Spring Rate Design

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Whiteline Rear Sway Bar 22mm - 2015+ WRX / 2015+ STI Gauges Progressive Spring Rate DesignBigger sway bar = more grip = better handling = outright performance it's the best dollar for dollar handling improvement you can make to your vehicle. This Whiteline adjustable sway bar allows its rate to be altered by increasing or reducing the length of the lever arms. This permits the roll stiffness to be tuned for different situations without replacing the entire bar. The stiffer the bar, the more force required to move the left and right wheels