I tried Eibachs .... worse than stock. Too soft. K&W's spring rates were pretty good. 640 front and around 440 rear. The front could use even more spring rate. The ground control I had (1300 and 900 I believe) were too stiff for a near stock car. You need lots of aero, race tires, sticky track and high speeds to get them to work. Based on what I've tried I'd say 440 to 480 rear. Front needs 600 to 800. For those interested, stock SRT (coupe) springs rates are 451 front and 480 rear.


Les