YSR Advanced Pro Plus Circuit Race 2-Way Coilovers BMW M3 M4 F80 F82 14-UP – 5 Bolt Upper Mount Rear Shock & Spring One Unit

ADVANCED PRO PLUS is a 2-way coilover system with inverted mono tube dampers made for vehicles with MacPherson strut type only. The system allows you to adjust the rebound and compression damping separately. With an external reservoir, this system provides extra oil capacity to dissipate heat well, which allows you to operate these coilovers for long period and improves performance & handling due to more stable variations in damping rates during the high speed driving. The braided hose is utilised to connect the external reservoir through upper mounts; this is ideal to allow for variable mounting locations when the external reservoir is mounted.