TEIN GSF12-9UAA2 Street Advance Z Coilover Kit

The TEIN GSF12-9UAA2 Street Advance Z is a height-adjustable coilover suspension system engineered for enthusiasts seeking improved handling performance and adjustable ride height. Manufactured in TEIN's Yokohama, Japan facility, this complete coilover kit combines precision damping with fully adjustable spring perches for complete suspension customization.

Key Features:

• Height adjustable suspension via ZT-coated threaded sleeves
• Twin-tube internal damper design for comfortable street performance
• Powder-coated damper bodies for corrosion resistance
• Pre-matched spring rates and damper valving for optimal performance
• Full-length dust boots for extended component life
• One-piece aluminum spring seats with Delrin thrust washers
• Steel construction with no-sag coil springs

Kit Includes:

• Four TEIN coilover shock absorbers
• Four matched coil springs
• Four rubber bump stops
• All necessary mounting hardware

TEIN's Street Advance Z series is designed specifically for the North American market, with spring rates and valving tuned for local road conditions. The shortened damper shell case provides optimal stroke length even at lowered ride heights, maintaining ride quality throughout the adjustment range. Backed by TEIN's one-year limited warranty when purchased through authorized dealers.