What can I expect from DA Koni's??? I am thinking about getting a set made for my Cooper S for the rear. What will the effects be with having an adjustable rebound? Will it give a bit better traction in the sweepers when set properly?

Will DA's get me another .2 to .3 seconds on the average 45 second course?

 

Do not expect ANY gains other than adjustability. If dialed in just right, which depends on MANY variables (tire size, grip, temperature, surface, etc), you might gain one to two tenths on a 60 second course.
The standard Cooper S dampers are just very good. You're biggest advantage would be adjustability along with tire pressures.

Brian

 

Sounds good. I appreciate the input.