have 02 wrx, the only suspention upgrade's are Tein S tech and 18 wheels. Im on a budget and would like to know does a RSB really make that much of a difference.

 

A larger rear swaybar will reduce the inherent understeer. For the WRX, I would recommend an adjustable bar like Whiteline or Cusco. You can start on the lower setting, spend some time in the car, and adjust accordingly. Adjustable bars are usually in the 20-22-24 range, so start on the 20 setting at first.

On my STi on stock suspension, I am running a Cusco rear bar set to the middle position. The car seems quite neutral with a bit of understeer going into higher speed corners. That will be fixed when I put my coilovers on!

Enjoy the track - it becomes addicting...

 

thanks egan