Originally Posted by baller_v24
A thicker rear sway will help you with the understeer and steering rack bushings will help you with the turn in. I would recommend just that if you are on a budget, but if money is not entirely a big issue get the front sway bar and an ALK (whiteline), a front strut bar will also help some with the turn in. You could also get springs as well.
Actually, the front sway bar has a greater affect on understeer. Understeer is caused when the front wheels lose traction.
"Subaru loves the MacPherson strut setup up front. The problem is that as the loaded wheel compresses the camber rolls over toward positive. In the end this reduces your available contact patch on the ground. This reduces front grip. THIS leads to more understeer as your tires skip sideways over the tarmac.
NOT a good thing.
Fortunately, you can help control that by upping the wheel rate. Now you could do this with springs. Problem there is that begins to affect the ride quality. The answer is the front anti-roll
bar from Whiteline. It ups the wheel rate only in a turn, and helps to control some of that compression in a more civil manner. The end result is better handling."
- Excepted from: Turn In Concepts (TIC)
The rear sway has more to do with oversteer and keeping the rear in place (not getting loose/loosing rear wheel traction). A car is said to oversteer when the rear wheels do not track behind the front wheels but instead slide out toward the outside of the turn.
+1 for the recommendations of the ALK, Steering Rack Bushings, Front/Rear Sway Bars, and Front/Rear Endlinks. All will greatly improve handling and turn in. I would contact TIC
, as they are really the suspension gurus in the Subaru world (ask for Clint, he really knows his ****).