AST BMW G87 M2 / G80 M3 / G82 M4 Adjustable Lowering SpringsDescription: AST BMW G87 M2 G80 M3 G82 M4 Adjustable Lowering Springs 20 46mm Fr 10 36mm Rear AST LOWERING SPRINGS series Less Body Roll AST suspension lowering springs will lower that center of gravity without giving in a lot of the comfort you are used to with the OEM springs. The lowering springs are a direct replacement of the OEM springs and have been developed especially for each vehicle specific. Made out of the best material on the best Wafios