TEIN FLEX Z COILOVER SYSTEM - 2012-2015 Civic/2012-2013 Civic SiNon si comes with conversion kit SPS12 P9043. Tein Flex Z is a complete suspension kit that includes 4 shock absorbers and 4 springs. The Flex Z coilover kit guarantees to deliver excellent quality at an attractive price. This unparalleled coilover kit features special full length system that allows ride height adjustment with minimal change in ride. In addition, the coilovers are available with 16 level linear damping force adjustment system that