Do you ever notice how your wheel tugs when driving over un-even roads at high speeds on a lowered S2000? The angle on the steering tie rod has changed due to the lower ride height from coilovers or lowering springs..etc. 

The factory has designed the steering system to be optimized at the stock height. It takes very little angle in the wheel to make the car steer. The Hardrace anti-bumpsteer kit returns the steering tie rod to the more optimal and to create stock-like suspension angle.

Complete with mounting hardware.