Spoon Sport's Rear Roll Center Adjusters allows for a 1.5"+ drops on the rear of the S2000; while maintaining proper suspension geometry and avoiding bump steer.    

When your car is lowered, the lower arm pivots up higher when compared to stock height. This will cause the entire spindle and wheel to move up relative to the chassis; thus messing up the car's suspension geometry.  When this happens you have to obtain a ball joint that's taller than stock to set the geometry back to OEM specs while allowing the car to be lowered.  By lowering the car you obtain better center of gravity and by maintaining stock geometry you avoid bump steer.