BMW Z4 M (E85) 2006-2008 - 500 Series Coilovers Spring Upgrade:Hyperco Springs Lower spring rates can be

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

Occasional Track Use

locking rings

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

All new Clamp Style Locking Rings no longer requires an additional locking ring to lock the spring perch in place

BMW Z4 M (E85) 2006-2008 - 500 Series Coilovers Spring Upgrade:Hyperco Springs Lower spring rates can beCUSTOM. 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