The Street Advance damper is the evolution of our popular Super Street coilover. Developed to provide a sporty ride 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. Made in Japan under strict quality control standards and developed by highly trained suspension engineers.Features: Steel Construction Twin Tube internal construction Larger piston diameter for strut type front and rear (22mm) Improved wider 16 level damping force adjustment Ride Height adjustable via spring seat Powder coated damper body Non-welded ZT coated Adjustment Tube Full-Length Dust Boots 1-piece Aluminum Spring Seat with Delrin Thrust Washer Available for Overhaul 1-year Manufacturers Defect Warranty Contents of Damper Kit: Shock Absorber × 4 Main Spring × 4* *Some applications include helper springs Seat Lock × 4 Spring Seat × 4 Delrin Thrust Washer × 4 Bump Rubber × 4 Hook Spanner × 2 Dust Cover × 4* *Some kits will retain use of OEM Dust Covers Instruction Manual × 1