The Street Advance Z damper is the evolution of the popular Super Street coilover. Developed to provide a sporty ride feeling and aggressive stance, along with wide-range damping force adjustment using our new Advance Needle technology, giving the driver a much more noticeable feel in damping force change. The shortened shell case design provides optimum damper stroke at lower than standard vehicle ride height. Vehicle ride height is adjustable via the ZT coated threaded sleeve.