Infiniti D-NI-04 G37, Sedan (RWD) 2007-2014 Coilover Z4 M ONLY Custom Spring Rates And Swift

Custom Spring Rates And Swift Spring Compatible

Research on the racetrack has helped us develop the Fortune Auto 500 Series into a great all-around shock absorber

Custom Built Assembly Certificate and Dyno Graph Supplied with Shocks

Compressor Wear-Down Testing

Featuring a full twin tube design with integrated aluminum top mounts

Infiniti D-NI-04 G37, Sedan (RWD) 2007-2014 Coilover Z4 M ONLY Custom Spring Rates And SwiftThe RS Series suspension kit is our most popular coilover. Featuring a 36 way damping and rebound adjustable monotube design, RS Series coilovers are perfect for the modified street car that also sees occasional track days. This coilover has separate height and preload adjustments allowing for optimal suspension tuning while maintaining full strut travel at all times. Key Features: Uses either a rubber upper mount or pillowball rubber upper mounts.