TEIN GSM74-91SS2 Street Advance Z Coilover Kit with 16-Way Damping Adjustment

The TEIN Street Advance Z Coilover Kit represents the evolution of the popular Super Street coilover, engineered to deliver a sporty ride feel and aggressive stance for street enthusiasts. This complete suspension system features twin-tube damper construction for superior ride comfort and extended stroke capability compared to mono-tube designs.

Key Features:

• 16-stage damping force adjustment using Advance Needle technology for noticeable changes in damping feel
• Thread-type ride height adjustment via ZT-coated threaded sleeve for corrosion and abrasion resistance
• Twin-tube damper design provides longer stroke with smaller repulsive force for enhanced ride comfort
• Shortened shell case design optimizes damper stroke at lowered ride heights
• Front spring rate: 308 lbs/in (5.5 kgf/mm) | Rear spring rate: 196 lbs/in (3.5 kgf/mm)
• Spring length: 225mm front and rear
• Front and rear damping force adjustment
• Uses OEM upper mounts (not included)
• TEIN green powder-coated finish with superior rust protection using patented 2-layer, 1-bake coating method

Manufactured in TEIN's Yokohama, Japan facility, each Street Advance Z kit is test-fitted and road-tested by trained suspension engineers to ensure optimal balance between comfort and performance. The twin-tube system allows for smooth operation over rough roads while maintaining stability at high speeds, making this kit ideal for aggressive street driving applications.