Tein Street Advance Z Nissan Skyline R34 GTT RB25DET ER34 1998-2001.

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. Updated internal components and external coatings increase durability and product life. Street Advance dampers are great for daily driving and spirited driving for all types of drivers. Additional Information - Steel Construction - Twin Tube internal construction - 16-way Damping adjustment with over 200% increase in damping force change. - Ride Height adjustable via spring seat - High-Performance Damper Oil - Powder coated damper body - STREET ADVANCE Z and STREET BASIS Z use the vehicle's original upper top mounts (not included in  product kit) - 1-year Manufacturers Defect Warranty