Torque Solution Urethane Differential Inserts Evolution X MR/GSR 2008-2014 | TS-EVX-002 vendor_GrimmSpeed and they will tell you

and they will tell you that the best bang for the buck handling mod you can give your WRX is a high-performance swaybar

Single Cylinder Design:

Whiteline Front Adjustable Strut Bar for the Legacy GT

The stock cores on the car are very good for stock power

whether factory or aftermarket

Torque Solution Urethane Differential Inserts Evolution X MR/GSR 2008-2014 | TS-EVX-002 vendor_GrimmSpeed and they will tell youPart #: TS EVX 002 These Solid Polyurethane bushings are much harder compared to the OEM units. By replacing them with these harder Polyurethane units you are able to get rid of the unwanted slop and flexing of the stock units which allows for the power to go into rotating the tires, instead of flexing the rubber. Giving you better feedback, sharper response, more predictability on throttle input, along with eliminating annoying clunking during hard