350F/400R is what i got, feels preety good, just avoid the potholes man, are not friendly to the car, overall its preety good for me, you could go stiffer or softer depending what you are going to use the car the most for, me mostly DD, and tuesdays hit the track, at least 2x a month, cant really complain about the Koni GC set up, but might need to replace them with my other coilvers, i might have damaged them due to an pot hole i hit preety hard going around 40mph, should find out saturday afternoon.