Increasing the diameter of your sway bars will have two main effects. They will modify handling balance in terms of steering bias (understeer or oversteer), and they will increase roll resistance. Like many AWD platforms, the stock WRX is designed to be biased towards understeer, meaning that the installation of a larger rear sway bar will eliminate the rear end grip bias and provide a more neutral handling feel. By adding a significantly a stiffer rear swaybar, grip can be biased towards the front end of the car, effectively eliminating the factory understeer and creating oversteer.
Whiteline sway bars for the 08-10 Subaru WRX are available as either a fixed or adjustable design, allowing you to dial in your desired front or rear stiffness. Whether you are building a time attack monster or just sprucing up your daily driver, you can be sure there is a Whiteline swaybar to suit your needs. All Whiteline swaybars are constructed from solid steel and come in "Silver Sparkle II" metallic powder coat color. Replacement polyurethane bushings, installation grease and instructions are included in each Whiteline swaybar kit for your WRX.
Do you like steering well? Do you like taking corners at speed? Then this is for you. Seriously, so incredibly happy with this bar on my car. Since installing (paired with KB endlinks and endlink spacers), I am able to point my car in a direction, and it just goes. It's honestly a little ridiculous how sweet of an upgrade this bar is. I have coilovers already, so my body roll was minimal before the bigger sway, but now I am able to take hard corners at ~40 with basically no body roll, and it just frickin goes. Seriously, point your steering wheel in a direction, keep your throttle pedal down, and let it eat. SO happy with it.