See also:

Wheel balance
Each wheel was correctly balanced when your vehicle was new, but the wheels will become unbalanced as the tires become worn during use. Wheel imbalance causes the steering wheel to vibrate slightl ...

Except 2.5 L turbo models
Your vehicle is equipped with “all season tires” which are designed to provide an adequate measure of traction, handling and braking performance in year-round driving. In winter, it may be possibl ...

New Designs for 2011
In front, the 2011 WRX STI models feature sharpened bumper corners and wider, blacked-out fog lamp nacelles to accentuate the "wide and low" profile. A jutting lip spoiler with three-dim ...