The Impreza comes with what can be described as an “adequate” suspension straight from the factory, but it does leave much to be desired. Too much body roll can lower confidence in driving, and does not allow you to use all 4 tires well during heavy cornering. AVO created a solid 22mm front stabilizer bar to replace the small stock stabilizer bar to fix this area.
Impreza 2.5i: 2008+ [2.5-liter N/A
Impreza WRX: 2008+ [2.5-liter turbocharged
Impreza STI: 2008+ [2.5-liter turbocharged
Legacy: 2010+ [2.5-liter turbocharged
Outback 3.6R: 2010+ [3.6-liter N/A