Whiteline sway bars are available in a plethora of different fitments and sizes; there's a Whiteline bar for just about every Subaru car and driving style. The stock Legacy GT rear sway bar is 16mm in diameter. This 20mm bar from Whiteline is 144% stiffer than the stock bar.
Note also that we suggest upgrading BOTH front and rear bars at once. Although upgrading the rear only is less expensive, the result is a car with more roll stiffness in the rear than in the front, and you'll give away ultimate grip as a result.
Includes polyurethane bushings and locking bar collars.
Fits 2005-2009 Subaru Legacy sedan and wagon.