BMW Z4 M (E85) 2006-2008 - 500 Series Coilovers Spring Upgrade:Hyperco Springs The large adjustment range contributes

The large adjustment range contributes to a comfortable ride on the street and unyielding performance on the track

The ultra wide range of adjustment offered by the CFD piston allows for the convenience of tuning your suspension without having to revalve your dampers

This is invaluable for tuning your suspension quickly at the track on race day

A conventional shock absorber can withstand a 2kg spring rate difference before requiring a revalve

Lower spring rates can be stiffened up by using the wide damping range as an artificial spring rate

BMW Z4 M (E85) 2006-2008 - 500 Series Coilovers Spring Upgrade:Hyperco Springs The large adjustment range contributesCUSTOM. MODULAR. REBUILDABLE. Fortune Auto engineers are consistently chasing improvement and the development of the Generation 8 500 series damper is no exception. The 500 Series single adjustable coilover is the entry into the Fortune Auto verse. Utilizing the highly advanced, High Flow Digressive Piston to optimize the perfect balance between performance and comfort along with the ability to upgrade and rebuild; youll never have to buy coilovers