The RCE “Regular Guy” Black springs are intended for both the daily driven street driver as well as the autocross and track day weekend warrior. Using similar spring rates as the extremely popular and successful RCE Yellow Springs, but having a much more subtle/mild drop in comparison, these are perfect for STi owners not looking for a ride height much lower then stock, and yet are still looking for increased spring rates. Although, these springs may have a subtle look, you will still be outpacing just about everything on the track and auto-x course