Ride Comfort is important, but restoring a vehicle's Ride Control; stability, stopping, lane change responsiveness and handling is most important. These Koni's make a world of difference in your car's handling and are adjustable for various road conditions. Shaft is heavy duty design and will give improved ride and performance over stock struts. These do not come with the dust boot or bump stop. Use (or re-use) the factory ones when doing the install.